Finding the Fourth Proportional to 82,591.48, 123,785.70 and 38,158.12

Step by Step Solution

1. Step 1: Write the proportion equation
   82,591.48 : 123,785.70 = 38,158.12 : x
2. Step 2: Convert to fraction form
   82,591.48/123,785.70 = 38,158.12/x
3. Step 3: Cross multiply
   82,591.48x = 123,785.70 × 38,158.12
4. Step 4: Simplify right side
   82,591.48x = 4,723,429,594.88
5. Step 5: Solve for x
   x = 4,723,429,594.88/82,591.48
6. Step 6: Final answer
   x = 57,190.28