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Finding the Fourth Proportional to 96,857.74, 145,505.33 and 57,440.71

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Solution

The fourth proportional to 96,857.74, 145,505.33 and 57,440.71 is: 86,290.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,857.74 : 145,505.33 = 57,440.71 : x
  2. Step 2: Convert to fraction form
    96,857.74/145,505.33 = 57,440.71/x
  3. Step 3: Cross multiply
    96,857.74x = 145,505.33 × 57,440.71
  4. Step 4: Simplify right side
    96,857.74x = 8,357,929,463.98
  5. Step 5: Solve for x
    x = 8,357,929,463.98/96,857.74
  6. Step 6: Final answer
    x = 86,290.78

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