Finding the Fourth Proportional to 25,372.42, 35,002.25 and 16,422.80

Step by Step Solution

1. Step 1: Write the proportion equation
   25,372.42 : 35,002.25 = 16,422.80 : x
2. Step 2: Convert to fraction form
   25,372.42/35,002.25 = 16,422.80/x
3. Step 3: Cross multiply
   25,372.42x = 35,002.25 × 16,422.80
4. Step 4: Simplify right side
   25,372.42x = 574,834,694.17
5. Step 5: Solve for x
   x = 574,834,694.17/25,372.42
6. Step 6: Final answer
   x = 22,655.89