Finding the Fourth Proportional to 65,212.24, 89,791.39 and 50,929.76

Step by Step Solution

1. Step 1: Write the proportion equation
   65,212.24 : 89,791.39 = 50,929.76 : x
2. Step 2: Convert to fraction form
   65,212.24/89,791.39 = 50,929.76/x
3. Step 3: Cross multiply
   65,212.24x = 89,791.39 × 50,929.76
4. Step 4: Simplify right side
   65,212.24x = 4,573,053,944.43
5. Step 5: Solve for x
   x = 4,573,053,944.43/65,212.24
6. Step 6: Final answer
   x = 70,125.70