Finding the Fourth Proportional to 74,945.24, 103,379.18 and 49,442.56

Step by Step Solution

1. Step 1: Write the proportion equation
   74,945.24 : 103,379.18 = 49,442.56 : x
2. Step 2: Convert to fraction form
   74,945.24/103,379.18 = 49,442.56/x
3. Step 3: Cross multiply
   74,945.24x = 103,379.18 × 49,442.56
4. Step 4: Simplify right side
   74,945.24x = 5,111,331,309.90
5. Step 5: Solve for x
   x = 5,111,331,309.90/74,945.24
6. Step 6: Final answer
   x = 68,200.88