Finding the Fourth Proportional to 9,124.92, 12,587.94 and 5,766.12

Step by Step Solution

1. Step 1: Write the proportion equation
   9,124.92 : 12,587.94 = 5,766.12 : x
2. Step 2: Convert to fraction form
   9,124.92/12,587.94 = 5,766.12/x
3. Step 3: Cross multiply
   9,124.92x = 12,587.94 × 5,766.12
4. Step 4: Simplify right side
   9,124.92x = 72,583,572.59
5. Step 5: Solve for x
   x = 72,583,572.59/9,124.92
6. Step 6: Final answer
   x = 7,954.43