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Finding the Fourth Proportional to 42,697.41, 64,056.51 and 19,317.57

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Solution

The fourth proportional to 42,697.41, 64,056.51 and 19,317.57 is: 28,981.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,697.41 : 64,056.51 = 19,317.57 : x
  2. Step 2: Convert to fraction form
    42,697.41/64,056.51 = 19,317.57/x
  3. Step 3: Cross multiply
    42,697.41x = 64,056.51 × 19,317.57
  4. Step 4: Simplify right side
    42,697.41x = 1,237,416,115.88
  5. Step 5: Solve for x
    x = 1,237,416,115.88/42,697.41
  6. Step 6: Final answer
    x = 28,981.06

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