Finding the Fourth Proportional to 12,404.86, 18,585.62 and 10,338.14

Step by Step Solution

1. Step 1: Write the proportion equation
   12,404.86 : 18,585.62 = 10,338.14 : x
2. Step 2: Convert to fraction form
   12,404.86/18,585.62 = 10,338.14/x
3. Step 3: Cross multiply
   12,404.86x = 18,585.62 × 10,338.14
4. Step 4: Simplify right side
   12,404.86x = 192,140,741.55
5. Step 5: Solve for x
   x = 192,140,741.55/12,404.86
6. Step 6: Final answer
   x = 15,489.15