Finding the Fourth Proportional to 10,782.52, 16,247.10 and 8,974.10

Step by Step Solution

1. Step 1: Write the proportion equation
   10,782.52 : 16,247.10 = 8,974.10 : x
2. Step 2: Convert to fraction form
   10,782.52/16,247.10 = 8,974.10/x
3. Step 3: Cross multiply
   10,782.52x = 16,247.10 × 8,974.10
4. Step 4: Simplify right side
   10,782.52x = 145,802,985.22
5. Step 5: Solve for x
   x = 145,802,985.22/10,782.52
6. Step 6: Final answer
   x = 13,522.16