Finding the Fourth Proportional to 8,059.50, 12,107.78 and 5,725.18

Step by Step Solution

1. Step 1: Write the proportion equation
   8,059.50 : 12,107.78 = 5,725.18 : x
2. Step 2: Convert to fraction form
   8,059.50/12,107.78 = 5,725.18/x
3. Step 3: Cross multiply
   8,059.50x = 12,107.78 × 5,725.18
4. Step 4: Simplify right side
   8,059.50x = 69,319,219.90
5. Step 5: Solve for x
   x = 69,319,219.90/8,059.50
6. Step 6: Final answer
   x = 8,600.93