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Finding the Fourth Proportional to 73,978.84, 110,973.66 and 21,388.60

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Solution

The fourth proportional to 73,978.84, 110,973.66 and 21,388.60 is: 32,084.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,978.84 : 110,973.66 = 21,388.60 : x
  2. Step 2: Convert to fraction form
    73,978.84/110,973.66 = 21,388.60/x
  3. Step 3: Cross multiply
    73,978.84x = 110,973.66 × 21,388.60
  4. Step 4: Simplify right side
    73,978.84x = 2,373,571,224.28
  5. Step 5: Solve for x
    x = 2,373,571,224.28/73,978.84
  6. Step 6: Final answer
    x = 32,084.46

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