Finding the Fourth Proportional to 78,641.17, 118,003.31 and 34,271.39

Step by Step Solution

1. Step 1: Write the proportion equation
   78,641.17 : 118,003.31 = 34,271.39 : x
2. Step 2: Convert to fraction form
   78,641.17/118,003.31 = 34,271.39/x
3. Step 3: Cross multiply
   78,641.17x = 118,003.31 × 34,271.39
4. Step 4: Simplify right side
   78,641.17x = 4,044,137,458.30
5. Step 5: Solve for x
   x = 4,044,137,458.30/78,641.17
6. Step 6: Final answer
   x = 51,425.19