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Finding the Fourth Proportional to 30,479.67, 42,058.09 and 17,736.98

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Solution

The fourth proportional to 30,479.67, 42,058.09 and 17,736.98 is: 24,474.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,479.67 : 42,058.09 = 17,736.98 : x
  2. Step 2: Convert to fraction form
    30,479.67/42,058.09 = 17,736.98/x
  3. Step 3: Cross multiply
    30,479.67x = 42,058.09 × 17,736.98
  4. Step 4: Simplify right side
    30,479.67x = 745,983,501.17
  5. Step 5: Solve for x
    x = 745,983,501.17/30,479.67
  6. Step 6: Final answer
    x = 24,474.79

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