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Finding the Fourth Proportional to 34,103.78, 47,092.99 and 21,378.89

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Solution

The fourth proportional to 34,103.78, 47,092.99 and 21,378.89 is: 29,521.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,103.78 : 47,092.99 = 21,378.89 : x
  2. Step 2: Convert to fraction form
    34,103.78/47,092.99 = 21,378.89/x
  3. Step 3: Cross multiply
    34,103.78x = 47,092.99 × 21,378.89
  4. Step 4: Simplify right side
    34,103.78x = 1,006,795,852.98
  5. Step 5: Solve for x
    x = 1,006,795,852.98/34,103.78
  6. Step 6: Final answer
    x = 29,521.53

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