Finding the Fourth Proportional to 55,133.28, 76,044.96 and 38,142.72

Step by Step Solution

1. Step 1: Write the proportion equation
   55,133.28 : 76,044.96 = 38,142.72 : x
2. Step 2: Convert to fraction form
   55,133.28/76,044.96 = 38,142.72/x
3. Step 3: Cross multiply
   55,133.28x = 76,044.96 × 38,142.72
4. Step 4: Simplify right side
   55,133.28x = 2,900,561,616.69
5. Step 5: Solve for x
   x = 2,900,561,616.69/55,133.28
6. Step 6: Final answer
   x = 52,610.00