Finding the Fourth Proportional to 8,756.59, 12,088.66 and 5,401.22

Step by Step Solution

1. Step 1: Write the proportion equation
   8,756.59 : 12,088.66 = 5,401.22 : x
2. Step 2: Convert to fraction form
   8,756.59/12,088.66 = 5,401.22/x
3. Step 3: Cross multiply
   8,756.59x = 12,088.66 × 5,401.22
4. Step 4: Simplify right side
   8,756.59x = 65,293,512.17
5. Step 5: Solve for x
   x = 65,293,512.17/8,756.59
6. Step 6: Final answer
   x = 7,456.50