Finding the Fourth Proportional to 89,613.91, 134,337.79 and 39,667.39

Step by Step Solution

1. Step 1: Write the proportion equation
   89,613.91 : 134,337.79 = 39,667.39 : x
2. Step 2: Convert to fraction form
   89,613.91/134,337.79 = 39,667.39/x
3. Step 3: Cross multiply
   89,613.91x = 134,337.79 × 39,667.39
4. Step 4: Simplify right side
   89,613.91x = 5,328,829,309.33
5. Step 5: Solve for x
   x = 5,328,829,309.33/89,613.91
6. Step 6: Final answer
   x = 59,464.31