Finding the Fourth Proportional to 71,843.22, 107,714.82 and 31,840.50

Step by Step Solution

1. Step 1: Write the proportion equation
   71,843.22 : 107,714.82 = 31,840.50 : x
2. Step 2: Convert to fraction form
   71,843.22/107,714.82 = 31,840.50/x
3. Step 3: Cross multiply
   71,843.22x = 107,714.82 × 31,840.50
4. Step 4: Simplify right side
   71,843.22x = 3,429,693,726.21
5. Step 5: Solve for x
   x = 3,429,693,726.21/71,843.22
6. Step 6: Final answer
   x = 47,738.59