Finding the Fourth Proportional to 34,404.69, 51,604.84 and 12,215.14

Step by Step Solution

1. Step 1: Write the proportion equation
   34,404.69 : 51,604.84 = 12,215.14 : x
2. Step 2: Convert to fraction form
   34,404.69/51,604.84 = 12,215.14/x
3. Step 3: Cross multiply
   34,404.69x = 51,604.84 × 12,215.14
4. Step 4: Simplify right side
   34,404.69x = 630,360,345.28
5. Step 5: Solve for x
   x = 630,360,345.28/34,404.69
6. Step 6: Final answer
   x = 18,321.93