Finding the Fourth Proportional to 11,706.80, 17,522.72 and 8,201.12

Step by Step Solution

1. Step 1: Write the proportion equation
   11,706.80 : 17,522.72 = 8,201.12 : x
2. Step 2: Convert to fraction form
   11,706.80/17,522.72 = 8,201.12/x
3. Step 3: Cross multiply
   11,706.80x = 17,522.72 × 8,201.12
4. Step 4: Simplify right side
   11,706.80x = 143,705,929.45
5. Step 5: Solve for x
   x = 143,705,929.45/11,706.80
6. Step 6: Final answer
   x = 12,275.42