Finding the Fourth Proportional to 8,876.45, 12,250.10 and 5,100.85

Step by Step Solution

1. Step 1: Write the proportion equation
   8,876.45 : 12,250.10 = 5,100.85 : x
2. Step 2: Convert to fraction form
   8,876.45/12,250.10 = 5,100.85/x
3. Step 3: Cross multiply
   8,876.45x = 12,250.10 × 5,100.85
4. Step 4: Simplify right side
   8,876.45x = 62,485,835.83
5. Step 5: Solve for x
   x = 62,485,835.83/8,876.45
6. Step 6: Final answer
   x = 7,039.51