Finding the Fourth Proportional to 10,188.88, 14,060.24 and 5,712.88

Step by Step Solution

1. Step 1: Write the proportion equation
   10,188.88 : 14,060.24 = 5,712.88 : x
2. Step 2: Convert to fraction form
   10,188.88/14,060.24 = 5,712.88/x
3. Step 3: Cross multiply
   10,188.88x = 14,060.24 × 5,712.88
4. Step 4: Simplify right side
   10,188.88x = 80,324,463.89
5. Step 5: Solve for x
   x = 80,324,463.89/10,188.88
6. Step 6: Final answer
   x = 7,883.54