Finding the Fourth Proportional to 10,188.52, 14,059.98 and 5,712.32

Step by Step Solution

1. Step 1: Write the proportion equation
   10,188.52 : 14,059.98 = 5,712.32 : x
2. Step 2: Convert to fraction form
   10,188.52/14,059.98 = 5,712.32/x
3. Step 3: Cross multiply
   10,188.52x = 14,059.98 × 5,712.32
4. Step 4: Simplify right side
   10,188.52x = 80,315,140.10
5. Step 5: Solve for x
   x = 80,315,140.10/10,188.52
6. Step 6: Final answer
   x = 7,882.91