Finding the Fourth Proportional to 48,826.79, 67,382.89 and 28,683.50

Step by Step Solution

1. Step 1: Write the proportion equation
   48,826.79 : 67,382.89 = 28,683.50 : x
2. Step 2: Convert to fraction form
   48,826.79/67,382.89 = 28,683.50/x
3. Step 3: Cross multiply
   48,826.79x = 67,382.89 × 28,683.50
4. Step 4: Simplify right side
   48,826.79x = 1,932,776,716.69
5. Step 5: Solve for x
   x = 1,932,776,716.69/48,826.79
6. Step 6: Final answer
   x = 39,584.35