Finding the Fourth Proportional to 16,062.72, 22,269.12 and 15,492.48

Step by Step Solution

1. Step 1: Write the proportion equation
   16,062.72 : 22,269.12 = 15,492.48 : x
2. Step 2: Convert to fraction form
   16,062.72/22,269.12 = 15,492.48/x
3. Step 3: Cross multiply
   16,062.72x = 22,269.12 × 15,492.48
4. Step 4: Simplify right side
   16,062.72x = 345,003,896.22
5. Step 5: Solve for x
   x = 345,003,896.22/16,062.72
6. Step 6: Final answer
   x = 21,478.55