Finding the Fourth Proportional to 50,651.20, 69,898.35 and 27,991.05

Step by Step Solution

1. Step 1: Write the proportion equation
   50,651.20 : 69,898.35 = 27,991.05 : x
2. Step 2: Convert to fraction form
   50,651.20/69,898.35 = 27,991.05/x
3. Step 3: Cross multiply
   50,651.20x = 69,898.35 × 27,991.05
4. Step 4: Simplify right side
   50,651.20x = 1,956,528,209.77
5. Step 5: Solve for x
   x = 1,956,528,209.77/50,651.20
6. Step 6: Final answer
   x = 38,627.48