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Finding the Fourth Proportional to 42,127.85, 63,205.43 and 12,545.93

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Solution

The fourth proportional to 42,127.85, 63,205.43 and 12,545.93 is: 18,822.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,127.85 : 63,205.43 = 12,545.93 : x
  2. Step 2: Convert to fraction form
    42,127.85/63,205.43 = 12,545.93/x
  3. Step 3: Cross multiply
    42,127.85x = 63,205.43 × 12,545.93
  4. Step 4: Simplify right side
    42,127.85x = 792,970,521.64
  5. Step 5: Solve for x
    x = 792,970,521.64/42,127.85
  6. Step 6: Final answer
    x = 18,822.95

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