Finding the Fourth Proportional to 79,141.43, 118,734.38 and 31,789.77

Step by Step Solution

1. Step 1: Write the proportion equation
   79,141.43 : 118,734.38 = 31,789.77 : x
2. Step 2: Convert to fraction form
   79,141.43/118,734.38 = 31,789.77/x
3. Step 3: Cross multiply
   79,141.43x = 118,734.38 × 31,789.77
4. Step 4: Simplify right side
   79,141.43x = 3,774,538,235.71
5. Step 5: Solve for x
   x = 3,774,538,235.71/79,141.43
6. Step 6: Final answer
   x = 47,693.58