Finding the Fourth Proportional to 10,088.46, 13,920.74 and 5,611.32

Step by Step Solution

1. Step 1: Write the proportion equation
   10,088.46 : 13,920.74 = 5,611.32 : x
2. Step 2: Convert to fraction form
   10,088.46/13,920.74 = 5,611.32/x
3. Step 3: Cross multiply
   10,088.46x = 13,920.74 × 5,611.32
4. Step 4: Simplify right side
   10,088.46x = 78,113,726.78
5. Step 5: Solve for x
   x = 78,113,726.78/10,088.46
6. Step 6: Final answer
   x = 7,742.88