Finding the Fourth Proportional to 55,365.81, 76,404.92 and 30,215.31

Step by Step Solution

1. Step 1: Write the proportion equation
   55,365.81 : 76,404.92 = 30,215.31 : x
2. Step 2: Convert to fraction form
   55,365.81/76,404.92 = 30,215.31/x
3. Step 3: Cross multiply
   55,365.81x = 76,404.92 × 30,215.31
4. Step 4: Simplify right side
   55,365.81x = 2,308,598,343.33
5. Step 5: Solve for x
   x = 2,308,598,343.33/55,365.81
6. Step 6: Final answer
   x = 41,697.18