Finding the Fourth Proportional to 10,505.92, 14,498.40 and 5,790.48

Step by Step Solution

1. Step 1: Write the proportion equation
   10,505.92 : 14,498.40 = 5,790.48 : x
2. Step 2: Convert to fraction form
   10,505.92/14,498.40 = 5,790.48/x
3. Step 3: Cross multiply
   10,505.92x = 14,498.40 × 5,790.48
4. Step 4: Simplify right side
   10,505.92x = 83,952,695.23
5. Step 5: Solve for x
   x = 83,952,695.23/10,505.92
6. Step 6: Final answer
   x = 7,990.99