Finding the Fourth Proportional to 10,591.55, 15,875.00 and 7,792.31

Step by Step Solution

1. Step 1: Write the proportion equation
   10,591.55 : 15,875.00 = 7,792.31 : x
2. Step 2: Convert to fraction form
   10,591.55/15,875.00 = 7,792.31/x
3. Step 3: Cross multiply
   10,591.55x = 15,875.00 × 7,792.31
4. Step 4: Simplify right side
   10,591.55x = 123,702,995.03
5. Step 5: Solve for x
   x = 123,702,995.03/10,591.55
6. Step 6: Final answer
   x = 11,679.40