Finding the Fourth Proportional to 92,022.72, 126,990.72 and 52,278.72

Step by Step Solution

1. Step 1: Write the proportion equation
   92,022.72 : 126,990.72 = 52,278.72 : x
2. Step 2: Convert to fraction form
   92,022.72/126,990.72 = 52,278.72/x
3. Step 3: Cross multiply
   92,022.72x = 126,990.72 × 52,278.72
4. Step 4: Simplify right side
   92,022.72x = 6,638,912,293.48
5. Step 5: Solve for x
   x = 6,638,912,293.48/92,022.72
6. Step 6: Final answer
   x = 72,144.27