Finding the Fourth Proportional to 78,816.78, 108,751.22 and 50,147.82

Step by Step Solution

1. Step 1: Write the proportion equation
   78,816.78 : 108,751.22 = 50,147.82 : x
2. Step 2: Convert to fraction form
   78,816.78/108,751.22 = 50,147.82/x
3. Step 3: Cross multiply
   78,816.78x = 108,751.22 × 50,147.82
4. Step 4: Simplify right side
   78,816.78x = 5,453,636,605.34
5. Step 5: Solve for x
   x = 5,453,636,605.34/78,816.78
6. Step 6: Final answer
   x = 69,193.85