Finding the Fourth Proportional to 10,087.22, 13,920.53 and 5,611.16

Step by Step Solution

1. Step 1: Write the proportion equation
   10,087.22 : 13,920.53 = 5,611.16 : x
2. Step 2: Convert to fraction form
   10,087.22/13,920.53 = 5,611.16/x
3. Step 3: Cross multiply
   10,087.22x = 13,920.53 × 5,611.16
4. Step 4: Simplify right side
   10,087.22x = 78,110,327.86
5. Step 5: Solve for x
   x = 78,110,327.86/10,087.22
6. Step 6: Final answer
   x = 7,743.49