Finding the Fourth Proportional to 78,152.85, 107,845.83 and 49,855.50

Step by Step Solution

1. Step 1: Write the proportion equation
   78,152.85 : 107,845.83 = 49,855.50 : x
2. Step 2: Convert to fraction form
   78,152.85/107,845.83 = 49,855.50/x
3. Step 3: Cross multiply
   78,152.85x = 107,845.83 × 49,855.50
4. Step 4: Simplify right side
   78,152.85x = 5,376,707,777.57
5. Step 5: Solve for x
   x = 5,376,707,777.57/78,152.85
6. Step 6: Final answer
   x = 68,797.33