Finding the Fourth Proportional to 55,620.38, 76,758.10 and 30,469.88

Step by Step Solution

1. Step 1: Write the proportion equation
   55,620.38 : 76,758.10 = 30,469.88 : x
2. Step 2: Convert to fraction form
   55,620.38/76,758.10 = 30,469.88/x
3. Step 3: Cross multiply
   55,620.38x = 76,758.10 × 30,469.88
4. Step 4: Simplify right side
   55,620.38x = 2,338,810,096.03
5. Step 5: Solve for x
   x = 2,338,810,096.03/55,620.38
6. Step 6: Final answer
   x = 42,049.52