Finding the Fourth Proportional to 12,623.24, 17,418.48 and 7,586.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,623.24 : 17,418.48 = 7,586.72 : x
2. Step 2: Convert to fraction form
   12,623.24/17,418.48 = 7,586.72/x
3. Step 3: Cross multiply
   12,623.24x = 17,418.48 × 7,586.72
4. Step 4: Simplify right side
   12,623.24x = 132,149,130.59
5. Step 5: Solve for x
   x = 132,149,130.59/12,623.24
6. Step 6: Final answer
   x = 10,468.72