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Finding the Fourth Proportional to 48,628.78, 72,943.17 and 11,692.78

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Solution

The fourth proportional to 48,628.78, 72,943.17 and 11,692.78 is: 17,539.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,628.78 : 72,943.17 = 11,692.78 : x
  2. Step 2: Convert to fraction form
    48,628.78/72,943.17 = 11,692.78/x
  3. Step 3: Cross multiply
    48,628.78x = 72,943.17 × 11,692.78
  4. Step 4: Simplify right side
    48,628.78x = 852,908,439.31
  5. Step 5: Solve for x
    x = 852,908,439.31/48,628.78
  6. Step 6: Final answer
    x = 17,539.17

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