Finding the Fourth Proportional to 78,936.30, 118,401.72 and 19,772.48

Step by Step Solution

1. Step 1: Write the proportion equation
   78,936.30 : 118,401.72 = 19,772.48 : x
2. Step 2: Convert to fraction form
   78,936.30/118,401.72 = 19,772.48/x
3. Step 3: Cross multiply
   78,936.30x = 118,401.72 × 19,772.48
4. Step 4: Simplify right side
   78,936.30x = 2,341,095,640.67
5. Step 5: Solve for x
   x = 2,341,095,640.67/78,936.30
6. Step 6: Final answer
   x = 29,658.04