Finding the Fourth Proportional to 12,031.86, 16,601.94 and 6,726.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,031.86 : 16,601.94 = 6,726.72 : x
2. Step 2: Convert to fraction form
   12,031.86/16,601.94 = 6,726.72/x
3. Step 3: Cross multiply
   12,031.86x = 16,601.94 × 6,726.72
4. Step 4: Simplify right side
   12,031.86x = 111,676,601.84
5. Step 5: Solve for x
   x = 111,676,601.84/12,031.86
6. Step 6: Final answer
   x = 9,281.74