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Finding the Fourth Proportional to 21,557.52, 29,746.98 and 12,125.88

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Solution

The fourth proportional to 21,557.52, 29,746.98 and 12,125.88 is: 16,732.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,557.52 : 29,746.98 = 12,125.88 : x
  2. Step 2: Convert to fraction form
    21,557.52/29,746.98 = 12,125.88/x
  3. Step 3: Cross multiply
    21,557.52x = 29,746.98 × 12,125.88
  4. Step 4: Simplify right side
    21,557.52x = 360,708,309.84
  5. Step 5: Solve for x
    x = 360,708,309.84/21,557.52
  6. Step 6: Final answer
    x = 16,732.37

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