Finding the Fourth Proportional to 78,960.90, 118,498.49 and 30,936.68

Step by Step Solution

1. Step 1: Write the proportion equation
   78,960.90 : 118,498.49 = 30,936.68 : x
2. Step 2: Convert to fraction form
   78,960.90/118,498.49 = 30,936.68/x
3. Step 3: Cross multiply
   78,960.90x = 118,498.49 × 30,936.68
4. Step 4: Simplify right side
   78,960.90x = 3,665,949,865.61
5. Step 5: Solve for x
   x = 3,665,949,865.61/78,960.90
6. Step 6: Final answer
   x = 46,427.41