Finding the Fourth Proportional to 12,404.17, 18,564.68 and 10,182.88

Step by Step Solution

1. Step 1: Write the proportion equation
   12,404.17 : 18,564.68 = 10,182.88 : x
2. Step 2: Convert to fraction form
   12,404.17/18,564.68 = 10,182.88/x
3. Step 3: Cross multiply
   12,404.17x = 18,564.68 × 10,182.88
4. Step 4: Simplify right side
   12,404.17x = 189,041,900.06
5. Step 5: Solve for x
   x = 189,041,900.06/12,404.17
6. Step 6: Final answer
   x = 15,240.19