Finding the Fourth Proportional to 16,131.48, 22,255.74 and 10,545.72

Step by Step Solution

1. Step 1: Write the proportion equation
   16,131.48 : 22,255.74 = 10,545.72 : x
2. Step 2: Convert to fraction form
   16,131.48/22,255.74 = 10,545.72/x
3. Step 3: Cross multiply
   16,131.48x = 22,255.74 × 10,545.72
4. Step 4: Simplify right side
   16,131.48x = 234,702,802.43
5. Step 5: Solve for x
   x = 234,702,802.43/16,131.48
6. Step 6: Final answer
   x = 14,549.37