Finding the Fourth Proportional to 78,978.24, 108,883.44 and 50,634.72

Step by Step Solution

1. Step 1: Write the proportion equation
   78,978.24 : 108,883.44 = 50,634.72 : x
2. Step 2: Convert to fraction form
   78,978.24/108,883.44 = 50,634.72/x
3. Step 3: Cross multiply
   78,978.24x = 108,883.44 × 50,634.72
4. Step 4: Simplify right side
   78,978.24x = 5,513,282,497.04
5. Step 5: Solve for x
   x = 5,513,282,497.04/78,978.24
6. Step 6: Final answer
   x = 69,807.61