Finding the Fourth Proportional to 12,706.30, 17,534.22 and 7,328.96

Step by Step Solution

1. Step 1: Write the proportion equation
   12,706.30 : 17,534.22 = 7,328.96 : x
2. Step 2: Convert to fraction form
   12,706.30/17,534.22 = 7,328.96/x
3. Step 3: Cross multiply
   12,706.30x = 17,534.22 × 7,328.96
4. Step 4: Simplify right side
   12,706.30x = 128,507,604.10
5. Step 5: Solve for x
   x = 128,507,604.10/12,706.30
6. Step 6: Final answer
   x = 10,113.69