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Finding the Fourth Proportional to 30,978.26, 46,488.14 and 19,892.73

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Solution

The fourth proportional to 30,978.26, 46,488.14 and 19,892.73 is: 29,852.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,978.26 : 46,488.14 = 19,892.73 : x
  2. Step 2: Convert to fraction form
    30,978.26/46,488.14 = 19,892.73/x
  3. Step 3: Cross multiply
    30,978.26x = 46,488.14 × 19,892.73
  4. Step 4: Simplify right side
    30,978.26x = 924,775,979.79
  5. Step 5: Solve for x
    x = 924,775,979.79/30,978.26
  6. Step 6: Final answer
    x = 29,852.42

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