Finding the Fourth Proportional to 49,496.96, 74,245.59 and 12,057.05

Step by Step Solution

1. Step 1: Write the proportion equation
   49,496.96 : 74,245.59 = 12,057.05 : x
2. Step 2: Convert to fraction form
   49,496.96/74,245.59 = 12,057.05/x
3. Step 3: Cross multiply
   49,496.96x = 74,245.59 × 12,057.05
4. Step 4: Simplify right side
   49,496.96x = 895,182,976.52
5. Step 5: Solve for x
   x = 895,182,976.52/49,496.96
6. Step 6: Final answer
   x = 18,085.61