Finding the Fourth Proportional to 10,505.31, 14,497.15 and 5,790.03

Step by Step Solution

1. Step 1: Write the proportion equation
   10,505.31 : 14,497.15 = 5,790.03 : x
2. Step 2: Convert to fraction form
   10,505.31/14,497.15 = 5,790.03/x
3. Step 3: Cross multiply
   10,505.31x = 14,497.15 × 5,790.03
4. Step 4: Simplify right side
   10,505.31x = 83,938,933.41
5. Step 5: Solve for x
   x = 83,938,933.41/10,505.31
6. Step 6: Final answer
   x = 7,990.14