Finding the Fourth Proportional to 8,123.59, 12,181.74 and 3,738.66

Step by Step Solution

1. Step 1: Write the proportion equation
   8,123.59 : 12,181.74 = 3,738.66 : x
2. Step 2: Convert to fraction form
   8,123.59/12,181.74 = 3,738.66/x
3. Step 3: Cross multiply
   8,123.59x = 12,181.74 × 3,738.66
4. Step 4: Simplify right side
   8,123.59x = 45,543,345.40
5. Step 5: Solve for x
   x = 45,543,345.40/8,123.59
6. Step 6: Final answer
   x = 5,606.31