Finding the Fourth Proportional to 5,123.38, 7,068.10 and 3,133.30

Step by Step Solution

1. Step 1: Write the proportion equation
   5,123.38 : 7,068.10 = 3,133.30 : x
2. Step 2: Convert to fraction form
   5,123.38/7,068.10 = 3,133.30/x
3. Step 3: Cross multiply
   5,123.38x = 7,068.10 × 3,133.30
4. Step 4: Simplify right side
   5,123.38x = 22,146,477.73
5. Step 5: Solve for x
   x = 22,146,477.73/5,123.38
6. Step 6: Final answer
   x = 4,322.63