Finding the Fourth Proportional to 31,210.34, 43,067 and 17,778.78

Step by Step Solution

1. Step 1: Write the proportion equation
   31,210.34 : 43,067 = 17,778.78 : x
2. Step 2: Convert to fraction form
   31,210.34/43,067 = 17,778.78/x
3. Step 3: Cross multiply
   31,210.34x = 43,067 × 17,778.78
4. Step 4: Simplify right side
   31,210.34x = 765,678,718.26
5. Step 5: Solve for x
   x = 765,678,718.26/31,210.34
6. Step 6: Final answer
   x = 24,532.85