Finding the Fourth Proportional to 31,129.74, 42,962.67 and 17,333.46

Step by Step Solution

1. Step 1: Write the proportion equation
   31,129.74 : 42,962.67 = 17,333.46 : x
2. Step 2: Convert to fraction form
   31,129.74/42,962.67 = 17,333.46/x
3. Step 3: Cross multiply
   31,129.74x = 42,962.67 × 17,333.46
4. Step 4: Simplify right side
   31,129.74x = 744,691,721.94
5. Step 5: Solve for x
   x = 744,691,721.94/31,129.74
6. Step 6: Final answer
   x = 23,922.20