Finding the Fourth Proportional to 78,732.96, 108,651.83 and 50,455.05

Step by Step Solution

1. Step 1: Write the proportion equation
   78,732.96 : 108,651.83 = 50,455.05 : x
2. Step 2: Convert to fraction form
   78,732.96/108,651.83 = 50,455.05/x
3. Step 3: Cross multiply
   78,732.96x = 108,651.83 × 50,455.05
4. Step 4: Simplify right side
   78,732.96x = 5,482,033,262.97
5. Step 5: Solve for x
   x = 5,482,033,262.97/78,732.96
6. Step 6: Final answer
   x = 69,628.19