Finding the Fourth Proportional to 86,046.83, 129,025.89 and 38,621.27

Step by Step Solution

1. Step 1: Write the proportion equation
   86,046.83 : 129,025.89 = 38,621.27 : x
2. Step 2: Convert to fraction form
   86,046.83/129,025.89 = 38,621.27/x
3. Step 3: Cross multiply
   86,046.83x = 129,025.89 × 38,621.27
4. Step 4: Simplify right side
   86,046.83x = 4,983,143,230.72
5. Step 5: Solve for x
   x = 4,983,143,230.72/86,046.83
6. Step 6: Final answer
   x = 57,911.99