Finding the Fourth Proportional to 11,501.76, 17,168.71 and 9,868.80

Step by Step Solution

1. Step 1: Write the proportion equation
   11,501.76 : 17,168.71 = 9,868.80 : x
2. Step 2: Convert to fraction form
   11,501.76/17,168.71 = 9,868.80/x
3. Step 3: Cross multiply
   11,501.76x = 17,168.71 × 9,868.80
4. Step 4: Simplify right side
   11,501.76x = 169,434,565.25
5. Step 5: Solve for x
   x = 169,434,565.25/11,501.76
6. Step 6: Final answer
   x = 14,731.19