Finding the Fourth Proportional to 12,123.90, 18,183.74 and 3,358.82

Step by Step Solution

1. Step 1: Write the proportion equation
   12,123.90 : 18,183.74 = 3,358.82 : x
2. Step 2: Convert to fraction form
   12,123.90/18,183.74 = 3,358.82/x
3. Step 3: Cross multiply
   12,123.90x = 18,183.74 × 3,358.82
4. Step 4: Simplify right side
   12,123.90x = 61,075,909.59
5. Step 5: Solve for x
   x = 61,075,909.59/12,123.90
6. Step 6: Final answer
   x = 5,037.65