Finding the Fourth Proportional to 31,158.39, 42,996.94 and 17,008.50

Step by Step Solution

1. Step 1: Write the proportion equation
   31,158.39 : 42,996.94 = 17,008.50 : x
2. Step 2: Convert to fraction form
   31,158.39/42,996.94 = 17,008.50/x
3. Step 3: Cross multiply
   31,158.39x = 42,996.94 × 17,008.50
4. Step 4: Simplify right side
   31,158.39x = 731,313,453.99
5. Step 5: Solve for x
   x = 731,313,453.99/31,158.39
6. Step 6: Final answer
   x = 23,470.84