Finding the Fourth Proportional to 3,438.30, 5,123.62 and 3,230.52

Step by Step Solution

1. Step 1: Write the proportion equation
   3,438.30 : 5,123.62 = 3,230.52 : x
2. Step 2: Convert to fraction form
   3,438.30/5,123.62 = 3,230.52/x
3. Step 3: Cross multiply
   3,438.30x = 5,123.62 × 3,230.52
4. Step 4: Simplify right side
   3,438.30x = 16,551,956.88
5. Step 5: Solve for x
   x = 16,551,956.88/3,438.30
6. Step 6: Final answer
   x = 4,813.99