Finding the Fourth Proportional to 12,123.29, 18,184.80 and 3,357.88

Step by Step Solution

1. Step 1: Write the proportion equation
   12,123.29 : 18,184.80 = 3,357.88 : x
2. Step 2: Convert to fraction form
   12,123.29/18,184.80 = 3,357.88/x
3. Step 3: Cross multiply
   12,123.29x = 18,184.80 × 3,357.88
4. Step 4: Simplify right side
   12,123.29x = 61,062,376.22
5. Step 5: Solve for x
   x = 61,062,376.22/12,123.29
6. Step 6: Final answer
   x = 5,036.78