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Finding the Fourth Proportional to 21,902.76, 32,865.48 and 8,754.84

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Solution

The fourth proportional to 21,902.76, 32,865.48 and 8,754.84 is: 13,136.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,902.76 : 32,865.48 = 8,754.84 : x
  2. Step 2: Convert to fraction form
    21,902.76/32,865.48 = 8,754.84/x
  3. Step 3: Cross multiply
    21,902.76x = 32,865.48 × 8,754.84
  4. Step 4: Simplify right side
    21,902.76x = 287,732,018.92
  5. Step 5: Solve for x
    x = 287,732,018.92/21,902.76
  6. Step 6: Final answer
    x = 13,136.79

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