Finding the Fourth Proportional to 49,509.28, 68,327.76 and 28,291.72

Step by Step Solution

1. Step 1: Write the proportion equation
   49,509.28 : 68,327.76 = 28,291.72 : x
2. Step 2: Convert to fraction form
   49,509.28/68,327.76 = 28,291.72/x
3. Step 3: Cross multiply
   49,509.28x = 68,327.76 × 28,291.72
4. Step 4: Simplify right side
   49,509.28x = 1,933,109,854.15
5. Step 5: Solve for x
   x = 1,933,109,854.15/49,509.28
6. Step 6: Final answer
   x = 39,045.40