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Finding the Fourth Proportional to 66,870.66, 100,305.78 and 16,950.61

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Solution

The fourth proportional to 66,870.66, 100,305.78 and 16,950.61 is: 25,425.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,870.66 : 100,305.78 = 16,950.61 : x
  2. Step 2: Convert to fraction form
    66,870.66/100,305.78 = 16,950.61/x
  3. Step 3: Cross multiply
    66,870.66x = 100,305.78 × 16,950.61
  4. Step 4: Simplify right side
    66,870.66x = 1,700,244,157.53
  5. Step 5: Solve for x
    x = 1,700,244,157.53/66,870.66
  6. Step 6: Final answer
    x = 25,425.86

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