Finding the Fourth Proportional to 17,500, 26,261.52 and 8,266.72

Step by Step Solution

1. Step 1: Write the proportion equation
   17,500 : 26,261.52 = 8,266.72 : x
2. Step 2: Convert to fraction form
   17,500/26,261.52 = 8,266.72/x
3. Step 3: Cross multiply
   17,500x = 26,261.52 × 8,266.72
4. Step 4: Simplify right side
   17,500x = 217,096,632.61
5. Step 5: Solve for x
   x = 217,096,632.61/17,500
6. Step 6: Final answer
   x = 12,405.52