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Finding the Fourth Proportional to 190,628.38, 285,944.64 and 57,509.80

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Solution

The fourth proportional to 190,628.38, 285,944.64 and 57,509.80 is: 86,265.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,628.38 : 285,944.64 = 57,509.80 : x
  2. Step 2: Convert to fraction form
    190,628.38/285,944.64 = 57,509.80/x
  3. Step 3: Cross multiply
    190,628.38x = 285,944.64 × 57,509.80
  4. Step 4: Simplify right side
    190,628.38x = 16,444,619,057.47
  5. Step 5: Solve for x
    x = 16,444,619,057.47/190,628.38
  6. Step 6: Final answer
    x = 86,265.32

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