Finding the Fourth Proportional to 11,315.33, 15,611.96 and 7,336.61

Step by Step Solution

1. Step 1: Write the proportion equation
   11,315.33 : 15,611.96 = 7,336.61 : x
2. Step 2: Convert to fraction form
   11,315.33/15,611.96 = 7,336.61/x
3. Step 3: Cross multiply
   11,315.33x = 15,611.96 × 7,336.61
4. Step 4: Simplify right side
   11,315.33x = 114,538,861.86
5. Step 5: Solve for x
   x = 114,538,861.86/11,315.33
6. Step 6: Final answer
   x = 10,122.45