Finding the Fourth Proportional to 31,215.07, 43,073.82 and 17,785.98

Step by Step Solution

1. Step 1: Write the proportion equation
   31,215.07 : 43,073.82 = 17,785.98 : x
2. Step 2: Convert to fraction form
   31,215.07/43,073.82 = 17,785.98/x
3. Step 3: Cross multiply
   31,215.07x = 43,073.82 × 17,785.98
4. Step 4: Simplify right side
   31,215.07x = 766,110,101.04
5. Step 5: Solve for x
   x = 766,110,101.04/31,215.07
6. Step 6: Final answer
   x = 24,542.96