Finding the Fourth Proportional to 12,763.46, 17,607.42 and 8,227.86

Step by Step Solution

1. Step 1: Write the proportion equation
   12,763.46 : 17,607.42 = 8,227.86 : x
2. Step 2: Convert to fraction form
   12,763.46/17,607.42 = 8,227.86/x
3. Step 3: Cross multiply
   12,763.46x = 17,607.42 × 8,227.86
4. Step 4: Simplify right side
   12,763.46x = 144,871,386.72
5. Step 5: Solve for x
   x = 144,871,386.72/12,763.46
6. Step 6: Final answer
   x = 11,350.48