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Finding the Fourth Proportional to 92,660.46, 139,144.45 and 57,821.55

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Solution

The fourth proportional to 92,660.46, 139,144.45 and 57,821.55 is: 86,828.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,660.46 : 139,144.45 = 57,821.55 : x
  2. Step 2: Convert to fraction form
    92,660.46/139,144.45 = 57,821.55/x
  3. Step 3: Cross multiply
    92,660.46x = 139,144.45 × 57,821.55
  4. Step 4: Simplify right side
    92,660.46x = 8,045,547,772.90
  5. Step 5: Solve for x
    x = 8,045,547,772.90/92,660.46
  6. Step 6: Final answer
    x = 86,828.27

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