Finding the Fourth Proportional to 8,280.01, 12,425.42 and 7,612.57

Step by Step Solution

1. Step 1: Write the proportion equation
   8,280.01 : 12,425.42 = 7,612.57 : x
2. Step 2: Convert to fraction form
   8,280.01/12,425.42 = 7,612.57/x
3. Step 3: Cross multiply
   8,280.01x = 12,425.42 × 7,612.57
4. Step 4: Simplify right side
   8,280.01x = 94,589,341.47
5. Step 5: Solve for x
   x = 94,589,341.47/8,280.01
6. Step 6: Final answer
   x = 11,423.82