Finding the Fourth Proportional to 50,648.56, 69,891.41 and 27,987.30

Step by Step Solution

1. Step 1: Write the proportion equation
   50,648.56 : 69,891.41 = 27,987.30 : x
2. Step 2: Convert to fraction form
   50,648.56/69,891.41 = 27,987.30/x
3. Step 3: Cross multiply
   50,648.56x = 69,891.41 × 27,987.30
4. Step 4: Simplify right side
   50,648.56x = 1,956,071,929.06
5. Step 5: Solve for x
   x = 1,956,071,929.06/50,648.56
6. Step 6: Final answer
   x = 38,620.49