Finding the Fourth Proportional to 50,139.72, 69,193.68 and 27,477.20

Step by Step Solution

1. Step 1: Write the proportion equation
   50,139.72 : 69,193.68 = 27,477.20 : x
2. Step 2: Convert to fraction form
   50,139.72/69,193.68 = 27,477.20/x
3. Step 3: Cross multiply
   50,139.72x = 69,193.68 × 27,477.20
4. Step 4: Simplify right side
   50,139.72x = 1,901,248,584.10
5. Step 5: Solve for x
   x = 1,901,248,584.10/50,139.72
6. Step 6: Final answer
   x = 37,919.01