Finding the Fourth Proportional to 91,996.13, 138,047.72 and 38,684.24

Step by Step Solution

1. Step 1: Write the proportion equation
   91,996.13 : 138,047.72 = 38,684.24 : x
2. Step 2: Convert to fraction form
   91,996.13/138,047.72 = 38,684.24/x
3. Step 3: Cross multiply
   91,996.13x = 138,047.72 × 38,684.24
4. Step 4: Simplify right side
   91,996.13x = 5,340,271,131.93
5. Step 5: Solve for x
   x = 5,340,271,131.93/91,996.13
6. Step 6: Final answer
   x = 58,048.87