Finding the Fourth Proportional to 49,005.28, 67,616.85 and 28,854.81

Step by Step Solution

1. Step 1: Write the proportion equation
   49,005.28 : 67,616.85 = 28,854.81 : x
2. Step 2: Convert to fraction form
   49,005.28/67,616.85 = 28,854.81/x
3. Step 3: Cross multiply
   49,005.28x = 67,616.85 × 28,854.81
4. Step 4: Simplify right side
   49,005.28x = 1,951,071,467.75
5. Step 5: Solve for x
   x = 1,951,071,467.75/49,005.28
6. Step 6: Final answer
   x = 39,813.49