Finding the Fourth Proportional to 9,103.92, 12,565.56 and 5,790

Step by Step Solution

1. Step 1: Write the proportion equation
   9,103.92 : 12,565.56 = 5,790 : x
2. Step 2: Convert to fraction form
   9,103.92/12,565.56 = 5,790/x
3. Step 3: Cross multiply
   9,103.92x = 12,565.56 × 5,790
4. Step 4: Simplify right side
   9,103.92x = 72,754,592.40
5. Step 5: Solve for x
   x = 72,754,592.40/9,103.92
6. Step 6: Final answer
   x = 7,991.57