Finding the Fourth Proportional to 139,494.24, 209,173.32 and 49,506.48

Step by Step Solution

1. Step 1: Write the proportion equation
   139,494.24 : 209,173.32 = 49,506.48 : x
2. Step 2: Convert to fraction form
   139,494.24/209,173.32 = 49,506.48/x
3. Step 3: Cross multiply
   139,494.24x = 209,173.32 × 49,506.48
4. Step 4: Simplify right side
   139,494.24x = 10,355,434,783.11
5. Step 5: Solve for x
   x = 10,355,434,783.11/139,494.24
6. Step 6: Final answer
   x = 74,235.57