Finding the Fourth Proportional to 91,548.38, 137,342.16 and 28,367.10

Step by Step Solution

1. Step 1: Write the proportion equation
   91,548.38 : 137,342.16 = 28,367.10 : x
2. Step 2: Convert to fraction form
   91,548.38/137,342.16 = 28,367.10/x
3. Step 3: Cross multiply
   91,548.38x = 137,342.16 × 28,367.10
4. Step 4: Simplify right side
   91,548.38x = 3,895,998,786.94
5. Step 5: Solve for x
   x = 3,895,998,786.94/91,548.38
6. Step 6: Final answer
   x = 42,556.72