Finding the Fourth Proportional to 78,456.97, 117,673.05 and 34,071.81

Step by Step Solution

1. Step 1: Write the proportion equation
   78,456.97 : 117,673.05 = 34,071.81 : x
2. Step 2: Convert to fraction form
   78,456.97/117,673.05 = 34,071.81/x
3. Step 3: Cross multiply
   78,456.97x = 117,673.05 × 34,071.81
4. Step 4: Simplify right side
   78,456.97x = 4,009,333,801.72
5. Step 5: Solve for x
   x = 4,009,333,801.72/78,456.97
6. Step 6: Final answer
   x = 51,102.33