Finding the Fourth Proportional to 11,371, 15,691.98 and 7,182.76

Step by Step Solution

1. Step 1: Write the proportion equation
   11,371 : 15,691.98 = 7,182.76 : x
2. Step 2: Convert to fraction form
   11,371/15,691.98 = 7,182.76/x
3. Step 3: Cross multiply
   11,371x = 15,691.98 × 7,182.76
4. Step 4: Simplify right side
   11,371x = 112,711,726.26
5. Step 5: Solve for x
   x = 112,711,726.26/11,371
6. Step 6: Final answer
   x = 9,912.21