Finding the Fourth Proportional to 139,079.49, 208,564.63 and 49,103

Step by Step Solution

1. Step 1: Write the proportion equation
   139,079.49 : 208,564.63 = 49,103 : x
2. Step 2: Convert to fraction form
   139,079.49/208,564.63 = 49,103/x
3. Step 3: Cross multiply
   139,079.49x = 208,564.63 × 49,103
4. Step 4: Simplify right side
   139,079.49x = 10,241,149,026.89
5. Step 5: Solve for x
   x = 10,241,149,026.89/139,079.49
6. Step 6: Final answer
   x = 73,635.22