Finding the Fourth Proportional to 139,137.91, 208,723.49 and 49,162.00

Step by Step Solution

1. Step 1: Write the proportion equation
   139,137.91 : 208,723.49 = 49,162.00 : x
2. Step 2: Convert to fraction form
   139,137.91/208,723.49 = 49,162.00/x
3. Step 3: Cross multiply
   139,137.91x = 208,723.49 × 49,162.00
4. Step 4: Simplify right side
   139,137.91x = 10,261,263,816.48
5. Step 5: Solve for x
   x = 10,261,263,816.48/139,137.91
6. Step 6: Final answer
   x = 73,748.87