Finding the Fourth Proportional to 78,839.60, 108,798.84 and 50,545.36

Step by Step Solution

1. Step 1: Write the proportion equation
   78,839.60 : 108,798.84 = 50,545.36 : x
2. Step 2: Convert to fraction form
   78,839.60/108,798.84 = 50,545.36/x
3. Step 3: Cross multiply
   78,839.60x = 108,798.84 × 50,545.36
4. Step 4: Simplify right side
   78,839.60x = 5,499,276,535.38
5. Step 5: Solve for x
   x = 5,499,276,535.38/78,839.60
6. Step 6: Final answer
   x = 69,752.72