Finding the Fourth Proportional to 85,496.52, 128,288.52 and 38,743.32

Step by Step Solution

1. Step 1: Write the proportion equation
   85,496.52 : 128,288.52 = 38,743.32 : x
2. Step 2: Convert to fraction form
   85,496.52/128,288.52 = 38,743.32/x
3. Step 3: Cross multiply
   85,496.52x = 128,288.52 × 38,743.32
4. Step 4: Simplify right side
   85,496.52x = 4,970,323,182.69
5. Step 5: Solve for x
   x = 4,970,323,182.69/85,496.52
6. Step 6: Final answer
   x = 58,134.80