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Finding the Fourth Proportional to 57,672.96, 86,469.12 and 26,491.20

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Solution

The fourth proportional to 57,672.96, 86,469.12 and 26,491.20 is: 39,718.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,672.96 : 86,469.12 = 26,491.20 : x
  2. Step 2: Convert to fraction form
    57,672.96/86,469.12 = 26,491.20/x
  3. Step 3: Cross multiply
    57,672.96x = 86,469.12 × 26,491.20
  4. Step 4: Simplify right side
    57,672.96x = 2,290,670,751.74
  5. Step 5: Solve for x
    x = 2,290,670,751.74/57,672.96
  6. Step 6: Final answer
    x = 39,718.28

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