Finding the Fourth Proportional to 25,378.43, 35,010.50 and 16,428.83

Step by Step Solution

1. Step 1: Write the proportion equation
   25,378.43 : 35,010.50 = 16,428.83 : x
2. Step 2: Convert to fraction form
   25,378.43/35,010.50 = 16,428.83/x
3. Step 3: Cross multiply
   25,378.43x = 35,010.50 × 16,428.83
4. Step 4: Simplify right side
   25,378.43x = 575,181,295.52
5. Step 5: Solve for x
   x = 575,181,295.52/25,378.43
6. Step 6: Final answer
   x = 22,664.18