Finding the Fourth Proportional to 12,546.45, 18,818.36 and 5,151.69

Step by Step Solution

1. Step 1: Write the proportion equation
   12,546.45 : 18,818.36 = 5,151.69 : x
2. Step 2: Convert to fraction form
   12,546.45/18,818.36 = 5,151.69/x
3. Step 3: Cross multiply
   12,546.45x = 18,818.36 × 5,151.69
4. Step 4: Simplify right side
   12,546.45x = 96,946,331.27
5. Step 5: Solve for x
   x = 96,946,331.27/12,546.45
6. Step 6: Final answer
   x = 7,726.99