Finding the Fourth Proportional to 82,521.66, 123,762.58 and 38,105.72

Step by Step Solution

1. Step 1: Write the proportion equation
   82,521.66 : 123,762.58 = 38,105.72 : x
2. Step 2: Convert to fraction form
   82,521.66/123,762.58 = 38,105.72/x
3. Step 3: Cross multiply
   82,521.66x = 123,762.58 × 38,105.72
4. Step 4: Simplify right side
   82,521.66x = 4,716,062,219.96
5. Step 5: Solve for x
   x = 4,716,062,219.96/82,521.66
6. Step 6: Final answer
   x = 57,149.39