Finding the Fourth Proportional to 12,706.72, 17,534.76 and 7,401.52

Step by Step Solution

1. Step 1: Write the proportion equation
   12,706.72 : 17,534.76 = 7,401.52 : x
2. Step 2: Convert to fraction form
   12,706.72/17,534.76 = 7,401.52/x
3. Step 3: Cross multiply
   12,706.72x = 17,534.76 × 7,401.52
4. Step 4: Simplify right side
   12,706.72x = 129,783,876.84
5. Step 5: Solve for x
   x = 129,783,876.84/12,706.72
6. Step 6: Final answer
   x = 10,213.80