Finding the Fourth Proportional to 139,078.36, 208,562.96 and 49,101.88

Step by Step Solution

1. Step 1: Write the proportion equation
   139,078.36 : 208,562.96 = 49,101.88 : x
2. Step 2: Convert to fraction form
   139,078.36/208,562.96 = 49,101.88/x
3. Step 3: Cross multiply
   139,078.36x = 208,562.96 × 49,101.88
4. Step 4: Simplify right side
   139,078.36x = 10,240,833,434.36
5. Step 5: Solve for x
   x = 10,240,833,434.36/139,078.36
6. Step 6: Final answer
   x = 73,633.55