Finding the Fourth Proportional to 76,993.68, 115,440.72 and 50,618.48

Step by Step Solution

1. Step 1: Write the proportion equation
   76,993.68 : 115,440.72 = 50,618.48 : x
2. Step 2: Convert to fraction form
   76,993.68/115,440.72 = 50,618.48/x
3. Step 3: Cross multiply
   76,993.68x = 115,440.72 × 50,618.48
4. Step 4: Simplify right side
   76,993.68x = 5,843,433,776.51
5. Step 5: Solve for x
   x = 5,843,433,776.51/76,993.68
6. Step 6: Final answer
   x = 75,894.98