Finding the Fourth Proportional to 91,979.48, 138,022.43 and 38,667.24

Step by Step Solution

1. Step 1: Write the proportion equation
   91,979.48 : 138,022.43 = 38,667.24 : x
2. Step 2: Convert to fraction form
   91,979.48/138,022.43 = 38,667.24/x
3. Step 3: Cross multiply
   91,979.48x = 138,022.43 × 38,667.24
4. Step 4: Simplify right side
   91,979.48x = 5,336,946,426.19
5. Step 5: Solve for x
   x = 5,336,946,426.19/91,979.48
6. Step 6: Final answer
   x = 58,023.23