Finding the Fourth Proportional to 8,706.12, 13,062.84 and 3,510.72

Step by Step Solution

1. Step 1: Write the proportion equation
   8,706.12 : 13,062.84 = 3,510.72 : x
2. Step 2: Convert to fraction form
   8,706.12/13,062.84 = 3,510.72/x
3. Step 3: Cross multiply
   8,706.12x = 13,062.84 × 3,510.72
4. Step 4: Simplify right side
   8,706.12x = 45,859,973.64
5. Step 5: Solve for x
   x = 45,859,973.64/8,706.12
6. Step 6: Final answer
   x = 5,267.56