Finding the Fourth Proportional to 31,112.07, 42,933.74 and 17,684.79

Step by Step Solution

1. Step 1: Write the proportion equation
   31,112.07 : 42,933.74 = 17,684.79 : x
2. Step 2: Convert to fraction form
   31,112.07/42,933.74 = 17,684.79/x
3. Step 3: Cross multiply
   31,112.07x = 42,933.74 × 17,684.79
4. Step 4: Simplify right side
   31,112.07x = 759,274,087.39
5. Step 5: Solve for x
   x = 759,274,087.39/31,112.07
6. Step 6: Final answer
   x = 24,404.49