Finding the Fourth Proportional to 9,089.22, 12,543.57 and 5,551.86

Step by Step Solution

1. Step 1: Write the proportion equation
   9,089.22 : 12,543.57 = 5,551.86 : x
2. Step 2: Convert to fraction form
   9,089.22/12,543.57 = 5,551.86/x
3. Step 3: Cross multiply
   9,089.22x = 12,543.57 × 5,551.86
4. Step 4: Simplify right side
   9,089.22x = 69,640,144.54
5. Step 5: Solve for x
   x = 69,640,144.54/9,089.22
6. Step 6: Final answer
   x = 7,661.84