Finding the Fourth Proportional to 79,143.42, 118,737.38 and 31,791.76

Step by Step Solution

1. Step 1: Write the proportion equation
   79,143.42 : 118,737.38 = 31,791.76 : x
2. Step 2: Convert to fraction form
   79,143.42/118,737.38 = 31,791.76/x
3. Step 3: Cross multiply
   79,143.42x = 118,737.38 × 31,791.76
4. Step 4: Simplify right side
   79,143.42x = 3,774,870,287.99
5. Step 5: Solve for x
   x = 3,774,870,287.99/79,143.42
6. Step 6: Final answer
   x = 47,696.58