Finding the Fourth Proportional to 31,203.71, 43,057.87 and 17,772.15

Step by Step Solution

1. Step 1: Write the proportion equation
   31,203.71 : 43,057.87 = 17,772.15 : x
2. Step 2: Convert to fraction form
   31,203.71/43,057.87 = 17,772.15/x
3. Step 3: Cross multiply
   31,203.71x = 43,057.87 × 17,772.15
4. Step 4: Simplify right side
   31,203.71x = 765,230,879.89
5. Step 5: Solve for x
   x = 765,230,879.89/31,203.71
6. Step 6: Final answer
   x = 24,523.72