Finding the Fourth Proportional to 25,715.16, 35,480.27 and 16,156.55

Step by Step Solution

1. Step 1: Write the proportion equation
   25,715.16 : 35,480.27 = 16,156.55 : x
2. Step 2: Convert to fraction form
   25,715.16/35,480.27 = 16,156.55/x
3. Step 3: Cross multiply
   25,715.16x = 35,480.27 × 16,156.55
4. Step 4: Simplify right side
   25,715.16x = 573,238,756.27
5. Step 5: Solve for x
   x = 573,238,756.27/25,715.16
6. Step 6: Final answer
   x = 22,291.86