Finding the Fourth Proportional to 139,080.49, 208,566.13 and 49,104

Step by Step Solution

1. Step 1: Write the proportion equation
   139,080.49 : 208,566.13 = 49,104 : x
2. Step 2: Convert to fraction form
   139,080.49/208,566.13 = 49,104/x
3. Step 3: Cross multiply
   139,080.49x = 208,566.13 × 49,104
4. Step 4: Simplify right side
   139,080.49x = 10,241,431,247.52
5. Step 5: Solve for x
   x = 10,241,431,247.52/139,080.49
6. Step 6: Final answer
   x = 73,636.72