Finding the Fourth Proportional to 31,667.10, 43,691.76 and 18,743.94

Step by Step Solution

1. Step 1: Write the proportion equation
   31,667.10 : 43,691.76 = 18,743.94 : x
2. Step 2: Convert to fraction form
   31,667.10/43,691.76 = 18,743.94/x
3. Step 3: Cross multiply
   31,667.10x = 43,691.76 × 18,743.94
4. Step 4: Simplify right side
   31,667.10x = 818,955,727.93
5. Step 5: Solve for x
   x = 818,955,727.93/31,667.10
6. Step 6: Final answer
   x = 25,861.41