Finding the Fourth Proportional to 49,555.76, 68,399.10 and 30,440.12

Step by Step Solution

1. Step 1: Write the proportion equation
   49,555.76 : 68,399.10 = 30,440.12 : x
2. Step 2: Convert to fraction form
   49,555.76/68,399.10 = 30,440.12/x
3. Step 3: Cross multiply
   49,555.76x = 68,399.10 × 30,440.12
4. Step 4: Simplify right side
   49,555.76x = 2,082,076,811.89
5. Step 5: Solve for x
   x = 2,082,076,811.89/49,555.76
6. Step 6: Final answer
   x = 42,014.83