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Finding the Fourth Proportional to 29,660.58, 40,928.49 and 16,912.80

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Solution

The fourth proportional to 29,660.58, 40,928.49 and 16,912.80 is: 23,337.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,660.58 : 40,928.49 = 16,912.80 : x
  2. Step 2: Convert to fraction form
    29,660.58/40,928.49 = 16,912.80/x
  3. Step 3: Cross multiply
    29,660.58x = 40,928.49 × 16,912.80
  4. Step 4: Simplify right side
    29,660.58x = 692,215,365.67
  5. Step 5: Solve for x
    x = 692,215,365.67/29,660.58
  6. Step 6: Final answer
    x = 23,337.89

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