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Finding the Fourth Proportional to 59,987.53, 89,972.05 and 20,007.21

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Solution

The fourth proportional to 59,987.53, 89,972.05 and 20,007.21 is: 30,007.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,987.53 : 89,972.05 = 20,007.21 : x
  2. Step 2: Convert to fraction form
    59,987.53/89,972.05 = 20,007.21/x
  3. Step 3: Cross multiply
    59,987.53x = 89,972.05 × 20,007.21
  4. Step 4: Simplify right side
    59,987.53x = 1,800,089,698.48
  5. Step 5: Solve for x
    x = 1,800,089,698.48/59,987.53
  6. Step 6: Final answer
    x = 30,007.73

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