Finding the Fourth Proportional to 40,357.91, 60,513.82 and 12,269.68

Step by Step Solution

1. Step 1: Write the proportion equation
   40,357.91 : 60,513.82 = 12,269.68 : x
2. Step 2: Convert to fraction form
   40,357.91/60,513.82 = 12,269.68/x
3. Step 3: Cross multiply
   40,357.91x = 60,513.82 × 12,269.68
4. Step 4: Simplify right side
   40,357.91x = 742,485,025.02
5. Step 5: Solve for x
   x = 742,485,025.02/40,357.91
6. Step 6: Final answer
   x = 18,397.51