Finding the Fourth Proportional to 78,479.57, 117,716.72 and 34,106.31

Step by Step Solution

1. Step 1: Write the proportion equation
   78,479.57 : 117,716.72 = 34,106.31 : x
2. Step 2: Convert to fraction form
   78,479.57/117,716.72 = 34,106.31/x
3. Step 3: Cross multiply
   78,479.57x = 117,716.72 × 34,106.31
4. Step 4: Simplify right side
   78,479.57x = 4,014,882,773.97
5. Step 5: Solve for x
   x = 4,014,882,773.97/78,479.57
6. Step 6: Final answer
   x = 51,158.32