Finding the Fourth Proportional to 57,730.38, 79,362.12 and 49,634.22

Step by Step Solution

1. Step 1: Write the proportion equation
   57,730.38 : 79,362.12 = 49,634.22 : x
2. Step 2: Convert to fraction form
   57,730.38/79,362.12 = 49,634.22/x
3. Step 3: Cross multiply
   57,730.38x = 79,362.12 × 49,634.22
4. Step 4: Simplify right side
   57,730.38x = 3,939,076,923.75
5. Step 5: Solve for x
   x = 3,939,076,923.75/57,730.38
6. Step 6: Final answer
   x = 68,232.31