Finding the Fourth Proportional to 8,830.26, 12,180.69 and 5,512.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,830.26 : 12,180.69 = 5,512.50 : x
2. Step 2: Convert to fraction form
   8,830.26/12,180.69 = 5,512.50/x
3. Step 3: Cross multiply
   8,830.26x = 12,180.69 × 5,512.50
4. Step 4: Simplify right side
   8,830.26x = 67,146,053.63
5. Step 5: Solve for x
   x = 67,146,053.63/8,830.26
6. Step 6: Final answer
   x = 7,604.09