Finding the Fourth Proportional to 49,007.35, 67,619.72 and 28,856.88

Step by Step Solution

1. Step 1: Write the proportion equation
   49,007.35 : 67,619.72 = 28,856.88 : x
2. Step 2: Convert to fraction form
   49,007.35/67,619.72 = 28,856.88/x
3. Step 3: Cross multiply
   49,007.35x = 67,619.72 × 28,856.88
4. Step 4: Simplify right side
   49,007.35x = 1,951,294,145.67
5. Step 5: Solve for x
   x = 1,951,294,145.67/49,007.35
6. Step 6: Final answer
   x = 39,816.36