Finding the Fourth Proportional to 12,105.12, 16,706.92 and 7,392.16

Step by Step Solution

1. Step 1: Write the proportion equation
   12,105.12 : 16,706.92 = 7,392.16 : x
2. Step 2: Convert to fraction form
   12,105.12/16,706.92 = 7,392.16/x
3. Step 3: Cross multiply
   12,105.12x = 16,706.92 × 7,392.16
4. Step 4: Simplify right side
   12,105.12x = 123,500,225.75
5. Step 5: Solve for x
   x = 123,500,225.75/12,105.12
6. Step 6: Final answer
   x = 10,202.31