Finding the Fourth Proportional to 12,337.62, 17,031.54 and 7,867.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,337.62 : 17,031.54 = 7,867.50 : x
2. Step 2: Convert to fraction form
   12,337.62/17,031.54 = 7,867.50/x
3. Step 3: Cross multiply
   12,337.62x = 17,031.54 × 7,867.50
4. Step 4: Simplify right side
   12,337.62x = 133,995,640.95
5. Step 5: Solve for x
   x = 133,995,640.95/12,337.62
6. Step 6: Final answer
   x = 10,860.74