Finding the Fourth Proportional to 10,862.72, 14,982.83 and 9,969.35

Step by Step Solution

1. Step 1: Write the proportion equation
   10,862.72 : 14,982.83 = 9,969.35 : x
2. Step 2: Convert to fraction form
   10,862.72/14,982.83 = 9,969.35/x
3. Step 3: Cross multiply
   10,862.72x = 14,982.83 × 9,969.35
4. Step 4: Simplify right side
   10,862.72x = 149,368,951.50
5. Step 5: Solve for x
   x = 149,368,951.50/10,862.72
6. Step 6: Final answer
   x = 13,750.61