Finding the Fourth Proportional to 8,820.77, 12,172.17 and 4,841.57

Step by Step Solution

1. Step 1: Write the proportion equation
   8,820.77 : 12,172.17 = 4,841.57 : x
2. Step 2: Convert to fraction form
   8,820.77/12,172.17 = 4,841.57/x
3. Step 3: Cross multiply
   8,820.77x = 12,172.17 × 4,841.57
4. Step 4: Simplify right side
   8,820.77x = 58,932,461.69
5. Step 5: Solve for x
   x = 58,932,461.69/8,820.77
6. Step 6: Final answer
   x = 6,681.11