Finding the Fourth Proportional to 139,077.74, 208,562.01 and 49,101.25

Step by Step Solution

1. Step 1: Write the proportion equation
   139,077.74 : 208,562.01 = 49,101.25 : x
2. Step 2: Convert to fraction form
   139,077.74/208,562.01 = 49,101.25/x
3. Step 3: Cross multiply
   139,077.74x = 208,562.01 × 49,101.25
4. Step 4: Simplify right side
   139,077.74x = 10,240,655,393.51
5. Step 5: Solve for x
   x = 10,240,655,393.51/139,077.74
6. Step 6: Final answer
   x = 73,632.60