Finding the Fourth Proportional to 55,668.56, 76,820.56 and 30,174.38

Step by Step Solution

1. Step 1: Write the proportion equation
   55,668.56 : 76,820.56 = 30,174.38 : x
2. Step 2: Convert to fraction form
   55,668.56/76,820.56 = 30,174.38/x
3. Step 3: Cross multiply
   55,668.56x = 76,820.56 × 30,174.38
4. Step 4: Simplify right side
   55,668.56x = 2,318,012,741.83
5. Step 5: Solve for x
   x = 2,318,012,741.83/55,668.56
6. Step 6: Final answer
   x = 41,639.53