Finding the Fourth Proportional to 50,359.12, 69,495.40 and 28,003.12

Step by Step Solution

1. Step 1: Write the proportion equation
   50,359.12 : 69,495.40 = 28,003.12 : x
2. Step 2: Convert to fraction form
   50,359.12/69,495.40 = 28,003.12/x
3. Step 3: Cross multiply
   50,359.12x = 69,495.40 × 28,003.12
4. Step 4: Simplify right side
   50,359.12x = 1,946,088,025.65
5. Step 5: Solve for x
   x = 1,946,088,025.65/50,359.12
6. Step 6: Final answer
   x = 38,644.20