Finding the Fourth Proportional to 28,152.68, 42,144.88 and 17,025.71

Step by Step Solution

1. Step 1: Write the proportion equation
   28,152.68 : 42,144.88 = 17,025.71 : x
2. Step 2: Convert to fraction form
   28,152.68/42,144.88 = 17,025.71/x
3. Step 3: Cross multiply
   28,152.68x = 42,144.88 × 17,025.71
4. Step 4: Simplify right side
   28,152.68x = 717,546,504.86
5. Step 5: Solve for x
   x = 717,546,504.86/28,152.68
6. Step 6: Final answer
   x = 25,487.68