Finding the Fourth Proportional to 10,931.48, 16,411.04 and 9,104.96

Step by Step Solution

1. Step 1: Write the proportion equation
   10,931.48 : 16,411.04 = 9,104.96 : x
2. Step 2: Convert to fraction form
   10,931.48/16,411.04 = 9,104.96/x
3. Step 3: Cross multiply
   10,931.48x = 16,411.04 × 9,104.96
4. Step 4: Simplify right side
   10,931.48x = 149,421,862.76
5. Step 5: Solve for x
   x = 149,421,862.76/10,931.48
6. Step 6: Final answer
   x = 13,668.95