Finding the Fourth Proportional to 12,108.88, 16,711.80 and 7,392.16

Step by Step Solution

1. Step 1: Write the proportion equation
   12,108.88 : 16,711.80 = 7,392.16 : x
2. Step 2: Convert to fraction form
   12,108.88/16,711.80 = 7,392.16/x
3. Step 3: Cross multiply
   12,108.88x = 16,711.80 × 7,392.16
4. Step 4: Simplify right side
   12,108.88x = 123,536,299.49
5. Step 5: Solve for x
   x = 123,536,299.49/12,108.88
6. Step 6: Final answer
   x = 10,202.12