Finding the Fourth Proportional to 55,530, 76,631.42 and 30,380.04

Step by Step Solution

1. Step 1: Write the proportion equation
   55,530 : 76,631.42 = 30,380.04 : x
2. Step 2: Convert to fraction form
   55,530/76,631.42 = 30,380.04/x
3. Step 3: Cross multiply
   55,530x = 76,631.42 × 30,380.04
4. Step 4: Simplify right side
   55,530x = 2,328,065,604.86
5. Step 5: Solve for x
   x = 2,328,065,604.86/55,530
6. Step 6: Final answer
   x = 41,924.47