Finding the Fourth Proportional to 90,644.82, 135,986.49 and 38,023.98

Step by Step Solution

1. Step 1: Write the proportion equation
   90,644.82 : 135,986.49 = 38,023.98 : x
2. Step 2: Convert to fraction form
   90,644.82/135,986.49 = 38,023.98/x
3. Step 3: Cross multiply
   90,644.82x = 135,986.49 × 38,023.98
4. Step 4: Simplify right side
   90,644.82x = 5,170,747,576.03
5. Step 5: Solve for x
   x = 5,170,747,576.03/90,644.82
6. Step 6: Final answer
   x = 57,044.05