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Finding the Fourth Proportional to 318,020.94, 477,028.98 and 81,363.24

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Solution

The fourth proportional to 318,020.94, 477,028.98 and 81,363.24 is: 122,044.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,020.94 : 477,028.98 = 81,363.24 : x
  2. Step 2: Convert to fraction form
    318,020.94/477,028.98 = 81,363.24/x
  3. Step 3: Cross multiply
    318,020.94x = 477,028.98 × 81,363.24
  4. Step 4: Simplify right side
    318,020.94x = 38,812,623,386.70
  5. Step 5: Solve for x
    x = 38,812,623,386.70/318,020.94
  6. Step 6: Final answer
    x = 122,044.24

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