Finding the Fourth Proportional to 12,123.50, 16,730.35 and 6,818.38

Step by Step Solution

1. Step 1: Write the proportion equation
   12,123.50 : 16,730.35 = 6,818.38 : x
2. Step 2: Convert to fraction form
   12,123.50/16,730.35 = 6,818.38/x
3. Step 3: Cross multiply
   12,123.50x = 16,730.35 × 6,818.38
4. Step 4: Simplify right side
   12,123.50x = 114,073,824.96
5. Step 5: Solve for x
   x = 114,073,824.96/12,123.50
6. Step 6: Final answer
   x = 9,409.32