Finding the Fourth Proportional to 9,124.92, 12,586.59 and 5,981.31

Step by Step Solution

1. Step 1: Write the proportion equation
   9,124.92 : 12,586.59 = 5,981.31 : x
2. Step 2: Convert to fraction form
   9,124.92/12,586.59 = 5,981.31/x
3. Step 3: Cross multiply
   9,124.92x = 12,586.59 × 5,981.31
4. Step 4: Simplify right side
   9,124.92x = 75,284,296.63
5. Step 5: Solve for x
   x = 75,284,296.63/9,124.92
6. Step 6: Final answer
   x = 8,250.41