Finding the Fourth Proportional to 49,679.47, 68,555.59 and 28,460.71

Step by Step Solution

1. Step 1: Write the proportion equation
   49,679.47 : 68,555.59 = 28,460.71 : x
2. Step 2: Convert to fraction form
   49,679.47/68,555.59 = 28,460.71/x
3. Step 3: Cross multiply
   49,679.47x = 68,555.59 × 28,460.71
4. Step 4: Simplify right side
   49,679.47x = 1,951,140,765.87
5. Step 5: Solve for x
   x = 1,951,140,765.87/49,679.47
6. Step 6: Final answer
   x = 39,274.59