Finding the Fourth Proportional to 139,022.52, 208,533.82 and 50,274.04

Step by Step Solution

1. Step 1: Write the proportion equation
   139,022.52 : 208,533.82 = 50,274.04 : x
2. Step 2: Convert to fraction form
   139,022.52/208,533.82 = 50,274.04/x
3. Step 3: Cross multiply
   139,022.52x = 208,533.82 × 50,274.04
4. Step 4: Simplify right side
   139,022.52x = 10,483,837,608.03
5. Step 5: Solve for x
   x = 10,483,837,608.03/139,022.52
6. Step 6: Final answer
   x = 75,411.07