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Finding the Fourth Proportional to 104,122.20, 155,964.60 and 57,320.40

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Solution

The fourth proportional to 104,122.20, 155,964.60 and 57,320.40 is: 85,860.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,122.20 : 155,964.60 = 57,320.40 : x
  2. Step 2: Convert to fraction form
    104,122.20/155,964.60 = 57,320.40/x
  3. Step 3: Cross multiply
    104,122.20x = 155,964.60 × 57,320.40
  4. Step 4: Simplify right side
    104,122.20x = 8,939,953,257.84
  5. Step 5: Solve for x
    x = 8,939,953,257.84/104,122.20
  6. Step 6: Final answer
    x = 85,860.20

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