Finding the Fourth Proportional to 78,832.69, 108,789.12 and 50,538.38

Step by Step Solution

1. Step 1: Write the proportion equation
   78,832.69 : 108,789.12 = 50,538.38 : x
2. Step 2: Convert to fraction form
   78,832.69/108,789.12 = 50,538.38/x
3. Step 3: Cross multiply
   78,832.69x = 108,789.12 × 50,538.38
4. Step 4: Simplify right side
   78,832.69x = 5,498,025,342.48
5. Step 5: Solve for x
   x = 5,498,025,342.48/78,832.69
6. Step 6: Final answer
   x = 69,742.96