Finding the Fourth Proportional to 10,505.56, 14,497.50 and 5,790.28

Step by Step Solution

1. Step 1: Write the proportion equation
   10,505.56 : 14,497.50 = 5,790.28 : x
2. Step 2: Convert to fraction form
   10,505.56/14,497.50 = 5,790.28/x
3. Step 3: Cross multiply
   10,505.56x = 14,497.50 × 5,790.28
4. Step 4: Simplify right side
   10,505.56x = 83,944,584.30
5. Step 5: Solve for x
   x = 83,944,584.30/10,505.56
6. Step 6: Final answer
   x = 7,990.49