Finding the Fourth Proportional to 31,151.48, 42,989.10 and 17,004.32

Step by Step Solution

1. Step 1: Write the proportion equation
   31,151.48 : 42,989.10 = 17,004.32 : x
2. Step 2: Convert to fraction form
   31,151.48/42,989.10 = 17,004.32/x
3. Step 3: Cross multiply
   31,151.48x = 42,989.10 × 17,004.32
4. Step 4: Simplify right side
   31,151.48x = 731,000,197.97
5. Step 5: Solve for x
   x = 731,000,197.97/31,151.48
6. Step 6: Final answer
   x = 23,465.99