Finding the Fourth Proportional to 49,179.60, 67,866.72 and 30,059.28

Step by Step Solution

1. Step 1: Write the proportion equation
   49,179.60 : 67,866.72 = 30,059.28 : x
2. Step 2: Convert to fraction form
   49,179.60/67,866.72 = 30,059.28/x
3. Step 3: Cross multiply
   49,179.60x = 67,866.72 × 30,059.28
4. Step 4: Simplify right side
   49,179.60x = 2,040,024,739.16
5. Step 5: Solve for x
   x = 2,040,024,739.16/49,179.60
6. Step 6: Final answer
   x = 41,481.12