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Finding the Fourth Proportional to 30,954.56, 42,717.76 and 16,807.68

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Solution

The fourth proportional to 30,954.56, 42,717.76 and 16,807.68 is: 23,194.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,954.56 : 42,717.76 = 16,807.68 : x
  2. Step 2: Convert to fraction form
    30,954.56/42,717.76 = 16,807.68/x
  3. Step 3: Cross multiply
    30,954.56x = 42,717.76 × 16,807.68
  4. Step 4: Simplify right side
    30,954.56x = 717,986,440.40
  5. Step 5: Solve for x
    x = 717,986,440.40/30,954.56
  6. Step 6: Final answer
    x = 23,194.85

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