Finding the Fourth Proportional to 28,258.42, 42,331.05 and 17,007.52

Step by Step Solution

1. Step 1: Write the proportion equation
   28,258.42 : 42,331.05 = 17,007.52 : x
2. Step 2: Convert to fraction form
   28,258.42/42,331.05 = 17,007.52/x
3. Step 3: Cross multiply
   28,258.42x = 42,331.05 × 17,007.52
4. Step 4: Simplify right side
   28,258.42x = 719,946,179.50
5. Step 5: Solve for x
   x = 719,946,179.50/28,258.42
6. Step 6: Final answer
   x = 25,477.23