Finding the Fourth Proportional to 137,858.54, 206,674.79 and 49,061.48

Step by Step Solution

1. Step 1: Write the proportion equation
   137,858.54 : 206,674.79 = 49,061.48 : x
2. Step 2: Convert to fraction form
   137,858.54/206,674.79 = 49,061.48/x
3. Step 3: Cross multiply
   137,858.54x = 206,674.79 × 49,061.48
4. Step 4: Simplify right side
   137,858.54x = 10,139,769,797.41
5. Step 5: Solve for x
   x = 10,139,769,797.41/137,858.54
6. Step 6: Final answer
   x = 73,551.99