Finding the Fourth Proportional to 49,025.72, 67,669.40 and 28,894.28

Step by Step Solution

1. Step 1: Write the proportion equation
   49,025.72 : 67,669.40 = 28,894.28 : x
2. Step 2: Convert to fraction form
   49,025.72/67,669.40 = 28,894.28/x
3. Step 3: Cross multiply
   49,025.72x = 67,669.40 × 28,894.28
4. Step 4: Simplify right side
   49,025.72x = 1,955,258,591.03
5. Step 5: Solve for x
   x = 1,955,258,591.03/49,025.72
6. Step 6: Final answer
   x = 39,882.30