Finding the Fourth Proportional to 59,900.31, 82,689 and 38,689.92

Step by Step Solution

1. Step 1: Write the proportion equation
   59,900.31 : 82,689 = 38,689.92 : x
2. Step 2: Convert to fraction form
   59,900.31/82,689 = 38,689.92/x
3. Step 3: Cross multiply
   59,900.31x = 82,689 × 38,689.92
4. Step 4: Simplify right side
   59,900.31x = 3,199,230,794.88
5. Step 5: Solve for x
   x = 3,199,230,794.88/59,900.31
6. Step 6: Final answer
   x = 53,409.25