Finding the Fourth Proportional to 87,411.69, 130,993.34 and 39,910.05

Step by Step Solution

1. Step 1: Write the proportion equation
   87,411.69 : 130,993.34 = 39,910.05 : x
2. Step 2: Convert to fraction form
   87,411.69/130,993.34 = 39,910.05/x
3. Step 3: Cross multiply
   87,411.69x = 130,993.34 × 39,910.05
4. Step 4: Simplify right side
   87,411.69x = 5,227,950,549.52
5. Step 5: Solve for x
   x = 5,227,950,549.52/87,411.69
6. Step 6: Final answer
   x = 59,808.37