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Finding the Fourth Proportional to 28,932.58, 39,910.35 and 16,993.72

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Solution

The fourth proportional to 28,932.58, 39,910.35 and 16,993.72 is: 23,441.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,932.58 : 39,910.35 = 16,993.72 : x
  2. Step 2: Convert to fraction form
    28,932.58/39,910.35 = 16,993.72/x
  3. Step 3: Cross multiply
    28,932.58x = 39,910.35 × 16,993.72
  4. Step 4: Simplify right side
    28,932.58x = 678,225,313.00
  5. Step 5: Solve for x
    x = 678,225,313.00/28,932.58
  6. Step 6: Final answer
    x = 23,441.58

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