Finding the Fourth Proportional to 91,993.82, 138,044.28 and 38,681.94

Step by Step Solution

1. Step 1: Write the proportion equation
   91,993.82 : 138,044.28 = 38,681.94 : x
2. Step 2: Convert to fraction form
   91,993.82/138,044.28 = 38,681.94/x
3. Step 3: Cross multiply
   91,993.82x = 138,044.28 × 38,681.94
4. Step 4: Simplify right side
   91,993.82x = 5,339,820,556.30
5. Step 5: Solve for x
   x = 5,339,820,556.30/91,993.82
6. Step 6: Final answer
   x = 58,045.43