Finding the Fourth Proportional to 55,654.69, 76,815.06 and 51,171.34

Step by Step Solution

1. Step 1: Write the proportion equation
   55,654.69 : 76,815.06 = 51,171.34 : x
2. Step 2: Convert to fraction form
   55,654.69/76,815.06 = 51,171.34/x
3. Step 3: Cross multiply
   55,654.69x = 76,815.06 × 51,171.34
4. Step 4: Simplify right side
   55,654.69x = 3,930,729,552.38
5. Step 5: Solve for x
   x = 3,930,729,552.38/55,654.69
6. Step 6: Final answer
   x = 70,627.10