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Finding the Fourth Proportional to 12,192.78, 16,827.28 and 8,792.60

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Solution

The fourth proportional to 12,192.78, 16,827.28 and 8,792.60 is: 12,134.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,192.78 : 16,827.28 = 8,792.60 : x
  2. Step 2: Convert to fraction form
    12,192.78/16,827.28 = 8,792.60/x
  3. Step 3: Cross multiply
    12,192.78x = 16,827.28 × 8,792.60
  4. Step 4: Simplify right side
    12,192.78x = 147,955,542.13
  5. Step 5: Solve for x
    x = 147,955,542.13/12,192.78
  6. Step 6: Final answer
    x = 12,134.68

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