Finding the Fourth Proportional to 52,698.88, 78,738.98 and 50,861.44

Step by Step Solution

1. Step 1: Write the proportion equation
   52,698.88 : 78,738.98 = 50,861.44 : x
2. Step 2: Convert to fraction form
   52,698.88/78,738.98 = 50,861.44/x
3. Step 3: Cross multiply
   52,698.88x = 78,738.98 × 50,861.44
4. Step 4: Simplify right side
   52,698.88x = 4,004,777,906.93
5. Step 5: Solve for x
   x = 4,004,777,906.93/52,698.88
6. Step 6: Final answer
   x = 75,993.61