Finding the Fourth Proportional to 10,505.84, 14,497.20 and 5,790.15

Step by Step Solution

1. Step 1: Write the proportion equation
   10,505.84 : 14,497.20 = 5,790.15 : x
2. Step 2: Convert to fraction form
   10,505.84/14,497.20 = 5,790.15/x
3. Step 3: Cross multiply
   10,505.84x = 14,497.20 × 5,790.15
4. Step 4: Simplify right side
   10,505.84x = 83,940,962.58
5. Step 5: Solve for x
   x = 83,940,962.58/10,505.84
6. Step 6: Final answer
   x = 7,989.94