Finding the Fourth Proportional to 10,188.71, 14,060.94 and 5,712.92

Step by Step Solution

1. Step 1: Write the proportion equation
   10,188.71 : 14,060.94 = 5,712.92 : x
2. Step 2: Convert to fraction form
   10,188.71/14,060.94 = 5,712.92/x
3. Step 3: Cross multiply
   10,188.71x = 14,060.94 × 5,712.92
4. Step 4: Simplify right side
   10,188.71x = 80,329,025.34
5. Step 5: Solve for x
   x = 80,329,025.34/10,188.71
6. Step 6: Final answer
   x = 7,884.12