Finding the Fourth Proportional to 49,123.55, 67,787.55 and 28,986.75

Step by Step Solution

1. Step 1: Write the proportion equation
   49,123.55 : 67,787.55 = 28,986.75 : x
2. Step 2: Convert to fraction form
   49,123.55/67,787.55 = 28,986.75/x
3. Step 3: Cross multiply
   49,123.55x = 67,787.55 × 28,986.75
4. Step 4: Simplify right side
   49,123.55x = 1,964,940,764.96
5. Step 5: Solve for x
   x = 1,964,940,764.96/49,123.55
6. Step 6: Final answer
   x = 39,999.97