Finding the Fourth Proportional to 14,568.55, 21,862.27 and 7,999.31

Step by Step Solution

1. Step 1: Write the proportion equation
   14,568.55 : 21,862.27 = 7,999.31 : x
2. Step 2: Convert to fraction form
   14,568.55/21,862.27 = 7,999.31/x
3. Step 3: Cross multiply
   14,568.55x = 21,862.27 × 7,999.31
4. Step 4: Simplify right side
   14,568.55x = 174,883,139.69
5. Step 5: Solve for x
   x = 174,883,139.69/14,568.55
6. Step 6: Final answer
   x = 12,004.16