Finding the Fourth Proportional to 78,355.48, 108,103.86 and 50,077.48

Step by Step Solution

1. Step 1: Write the proportion equation
   78,355.48 : 108,103.86 = 50,077.48 : x
2. Step 2: Convert to fraction form
   78,355.48/108,103.86 = 50,077.48/x
3. Step 3: Cross multiply
   78,355.48x = 108,103.86 × 50,077.48
4. Step 4: Simplify right side
   78,355.48x = 5,413,568,887.07
5. Step 5: Solve for x
   x = 5,413,568,887.07/78,355.48
6. Step 6: Final answer
   x = 69,089.86