Finding the Fourth Proportional to 31,158.26, 42,997.18 and 17,011.22

Step by Step Solution

1. Step 1: Write the proportion equation
   31,158.26 : 42,997.18 = 17,011.22 : x
2. Step 2: Convert to fraction form
   31,158.26/42,997.18 = 17,011.22/x
3. Step 3: Cross multiply
   31,158.26x = 42,997.18 × 17,011.22
4. Step 4: Simplify right side
   31,158.26x = 731,434,488.36
5. Step 5: Solve for x
   x = 731,434,488.36/31,158.26
6. Step 6: Final answer
   x = 23,474.82