Finding the Fourth Proportional to 11,948.50, 16,481.29 and 7,705

Step by Step Solution

1. Step 1: Write the proportion equation
   11,948.50 : 16,481.29 = 7,705 : x
2. Step 2: Convert to fraction form
   11,948.50/16,481.29 = 7,705/x
3. Step 3: Cross multiply
   11,948.50x = 16,481.29 × 7,705
4. Step 4: Simplify right side
   11,948.50x = 126,988,339.45
5. Step 5: Solve for x
   x = 126,988,339.45/11,948.50
6. Step 6: Final answer
   x = 10,627.97