Finding the Fourth Proportional to 77,684.52, 107,143.90 and 50,469.38

Step by Step Solution

1. Step 1: Write the proportion equation
   77,684.52 : 107,143.90 = 50,469.38 : x
2. Step 2: Convert to fraction form
   77,684.52/107,143.90 = 50,469.38/x
3. Step 3: Cross multiply
   77,684.52x = 107,143.90 × 50,469.38
4. Step 4: Simplify right side
   77,684.52x = 5,407,485,541.89
5. Step 5: Solve for x
   x = 5,407,485,541.89/77,684.52
6. Step 6: Final answer
   x = 69,608.28