Finding the Fourth Proportional to 55,143.34, 76,096.88 and 30,613.30

Step by Step Solution

1. Step 1: Write the proportion equation
   55,143.34 : 76,096.88 = 30,613.30 : x
2. Step 2: Convert to fraction form
   55,143.34/76,096.88 = 30,613.30/x
3. Step 3: Cross multiply
   55,143.34x = 76,096.88 × 30,613.30
4. Step 4: Simplify right side
   55,143.34x = 2,329,576,616.50
5. Step 5: Solve for x
   x = 2,329,576,616.50/55,143.34
6. Step 6: Final answer
   x = 42,245.84