Finding the Fourth Proportional to 25,189.50, 34,753.38 and 16,221.18

Step by Step Solution

1. Step 1: Write the proportion equation
   25,189.50 : 34,753.38 = 16,221.18 : x
2. Step 2: Convert to fraction form
   25,189.50/34,753.38 = 16,221.18/x
3. Step 3: Cross multiply
   25,189.50x = 34,753.38 × 16,221.18
4. Step 4: Simplify right side
   25,189.50x = 563,740,832.59
5. Step 5: Solve for x
   x = 563,740,832.59/25,189.50
6. Step 6: Final answer
   x = 22,379.99