Finding the Fourth Proportional to 12,340.02, 18,518.23 and 5,766.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,340.02 : 18,518.23 = 5,766.72 : x
2. Step 2: Convert to fraction form
   12,340.02/18,518.23 = 5,766.72/x
3. Step 3: Cross multiply
   12,340.02x = 18,518.23 × 5,766.72
4. Step 4: Simplify right side
   12,340.02x = 106,789,447.31
5. Step 5: Solve for x
   x = 106,789,447.31/12,340.02
6. Step 6: Final answer
   x = 8,653.91