Finding the Fourth Proportional to 10,884.71, 16,305.03 and 9,124.72

Step by Step Solution

1. Step 1: Write the proportion equation
   10,884.71 : 16,305.03 = 9,124.72 : x
2. Step 2: Convert to fraction form
   10,884.71/16,305.03 = 9,124.72/x
3. Step 3: Cross multiply
   10,884.71x = 16,305.03 × 9,124.72
4. Step 4: Simplify right side
   10,884.71x = 148,778,792.58
5. Step 5: Solve for x
   x = 148,778,792.58/10,884.71
6. Step 6: Final answer
   x = 13,668.60