Finding the Fourth Proportional to 31,151.45, 42,988.98 and 17,004.29

Step by Step Solution

1. Step 1: Write the proportion equation
   31,151.45 : 42,988.98 = 17,004.29 : x
2. Step 2: Convert to fraction form
   31,151.45/42,988.98 = 17,004.29/x
3. Step 3: Cross multiply
   31,151.45x = 42,988.98 × 17,004.29
4. Step 4: Simplify right side
   31,151.45x = 730,997,082.72
5. Step 5: Solve for x
   x = 730,997,082.72/31,151.45
6. Step 6: Final answer
   x = 23,465.91