Finding the Fourth Proportional to 16,618.24, 23,032.15 and 16,307.20

Step by Step Solution

1. Step 1: Write the proportion equation
   16,618.24 : 23,032.15 = 16,307.20 : x
2. Step 2: Convert to fraction form
   16,618.24/23,032.15 = 16,307.20/x
3. Step 3: Cross multiply
   16,618.24x = 23,032.15 × 16,307.20
4. Step 4: Simplify right side
   16,618.24x = 375,589,876.48
5. Step 5: Solve for x
   x = 375,589,876.48/16,618.24
6. Step 6: Final answer
   x = 22,601.06