Finding the Fourth Proportional to 78,131.36, 107,813.56 and 43,669.73

Step by Step Solution

1. Step 1: Write the proportion equation
   78,131.36 : 107,813.56 = 43,669.73 : x
2. Step 2: Convert to fraction form
   78,131.36/107,813.56 = 43,669.73/x
3. Step 3: Cross multiply
   78,131.36x = 107,813.56 × 43,669.73
4. Step 4: Simplify right side
   78,131.36x = 4,708,189,055.54
5. Step 5: Solve for x
   x = 4,708,189,055.54/78,131.36
6. Step 6: Final answer
   x = 60,259.91