Finding the Fourth Proportional to 31,151.01, 42,987.18 and 17,003.97

Step by Step Solution

1. Step 1: Write the proportion equation
   31,151.01 : 42,987.18 = 17,003.97 : x
2. Step 2: Convert to fraction form
   31,151.01/42,987.18 = 17,003.97/x
3. Step 3: Cross multiply
   31,151.01x = 42,987.18 × 17,003.97
4. Step 4: Simplify right side
   31,151.01x = 730,952,719.10
5. Step 5: Solve for x
   x = 730,952,719.10/31,151.01
6. Step 6: Final answer
   x = 23,464.82