Finding the Fourth Proportional to 50,585.28, 69,810.72 and 28,230.72

Step by Step Solution

1. Step 1: Write the proportion equation
   50,585.28 : 69,810.72 = 28,230.72 : x
2. Step 2: Convert to fraction form
   50,585.28/69,810.72 = 28,230.72/x
3. Step 3: Cross multiply
   50,585.28x = 69,810.72 × 28,230.72
4. Step 4: Simplify right side
   50,585.28x = 1,970,806,889.32
5. Step 5: Solve for x
   x = 1,970,806,889.32/50,585.28
6. Step 6: Final answer
   x = 38,960.09