Finding the Fourth Proportional to 139,077.77, 208,562.06 and 49,101.28

Step by Step Solution

1. Step 1: Write the proportion equation
   139,077.77 : 208,562.06 = 49,101.28 : x
2. Step 2: Convert to fraction form
   139,077.77/208,562.06 = 49,101.28/x
3. Step 3: Cross multiply
   139,077.77x = 208,562.06 × 49,101.28
4. Step 4: Simplify right side
   139,077.77x = 10,240,663,706.78
5. Step 5: Solve for x
   x = 10,240,663,706.78/139,077.77
6. Step 6: Final answer
   x = 73,632.64