Finding the Fourth Proportional to 12,251.34, 18,369.63 and 8,307.45

Step by Step Solution

1. Step 1: Write the proportion equation
   12,251.34 : 18,369.63 = 8,307.45 : x
2. Step 2: Convert to fraction form
   12,251.34/18,369.63 = 8,307.45/x
3. Step 3: Cross multiply
   12,251.34x = 18,369.63 × 8,307.45
4. Step 4: Simplify right side
   12,251.34x = 152,604,782.74
5. Step 5: Solve for x
   x = 152,604,782.74/12,251.34
6. Step 6: Final answer
   x = 12,456.17