Finding the Fourth Proportional to 10,949.86, 15,105.58 and 10,525.50

Step by Step Solution

1. Step 1: Write the proportion equation
   10,949.86 : 15,105.58 = 10,525.50 : x
2. Step 2: Convert to fraction form
   10,949.86/15,105.58 = 10,525.50/x
3. Step 3: Cross multiply
   10,949.86x = 15,105.58 × 10,525.50
4. Step 4: Simplify right side
   10,949.86x = 158,993,782.29
5. Step 5: Solve for x
   x = 158,993,782.29/10,949.86
6. Step 6: Final answer
   x = 14,520.17