Finding the Fourth Proportional to 31,210.86, 43,067.88 and 17,781.32

Step by Step Solution

1. Step 1: Write the proportion equation
   31,210.86 : 43,067.88 = 17,781.32 : x
2. Step 2: Convert to fraction form
   31,210.86/43,067.88 = 17,781.32/x
3. Step 3: Cross multiply
   31,210.86x = 43,067.88 × 17,781.32
4. Step 4: Simplify right side
   31,210.86x = 765,803,756.00
5. Step 5: Solve for x
   x = 765,803,756.00/31,210.86
6. Step 6: Final answer
   x = 24,536.45