Finding the Fourth Proportional to 55,665.76, 76,817.16 and 31,791.94

Step by Step Solution

1. Step 1: Write the proportion equation
   55,665.76 : 76,817.16 = 31,791.94 : x
2. Step 2: Convert to fraction form
   55,665.76/76,817.16 = 31,791.94/x
3. Step 3: Cross multiply
   55,665.76x = 76,817.16 × 31,791.94
4. Step 4: Simplify right side
   55,665.76x = 2,442,166,541.69
5. Step 5: Solve for x
   x = 2,442,166,541.69/55,665.76
6. Step 6: Final answer
   x = 43,871.97