Finding the Fourth Proportional to 55,519.52, 76,624.24 and 31,640.72

Step by Step Solution

1. Step 1: Write the proportion equation
   55,519.52 : 76,624.24 = 31,640.72 : x
2. Step 2: Convert to fraction form
   55,519.52/76,624.24 = 31,640.72/x
3. Step 3: Cross multiply
   55,519.52x = 76,624.24 × 31,640.72
4. Step 4: Simplify right side
   55,519.52x = 2,424,446,123.05
5. Step 5: Solve for x
   x = 2,424,446,123.05/55,519.52
6. Step 6: Final answer
   x = 43,668.36