Finding the Fourth Proportional to 138,820.42, 208,180.41 and 50,050.09

Step by Step Solution

1. Step 1: Write the proportion equation
   138,820.42 : 208,180.41 = 50,050.09 : x
2. Step 2: Convert to fraction form
   138,820.42/208,180.41 = 50,050.09/x
3. Step 3: Cross multiply
   138,820.42x = 208,180.41 × 50,050.09
4. Step 4: Simplify right side
   138,820.42x = 10,419,448,256.74
5. Step 5: Solve for x
   x = 10,419,448,256.74/138,820.42
6. Step 6: Final answer
   x = 75,057.03