Finding the Fourth Proportional to 78,824.84, 108,778.23 and 50,530.50

Step by Step Solution

1. Step 1: Write the proportion equation
   78,824.84 : 108,778.23 = 50,530.50 : x
2. Step 2: Convert to fraction form
   78,824.84/108,778.23 = 50,530.50/x
3. Step 3: Cross multiply
   78,824.84x = 108,778.23 × 50,530.50
4. Step 4: Simplify right side
   78,824.84x = 5,496,618,351.02
5. Step 5: Solve for x
   x = 5,496,618,351.02/78,824.84
6. Step 6: Final answer
   x = 69,732.06