Finding the Fourth Proportional to 10,781.10, 16,196.16 and 9,304.92

Step by Step Solution

1. Step 1: Write the proportion equation
   10,781.10 : 16,196.16 = 9,304.92 : x
2. Step 2: Convert to fraction form
   10,781.10/16,196.16 = 9,304.92/x
3. Step 3: Cross multiply
   10,781.10x = 16,196.16 × 9,304.92
4. Step 4: Simplify right side
   10,781.10x = 150,703,973.11
5. Step 5: Solve for x
   x = 150,703,973.11/10,781.10
6. Step 6: Final answer
   x = 13,978.53