Finding the Fourth Proportional to 5,388.30, 7,436.54 and 3,030.42

Step by Step Solution

1. Step 1: Write the proportion equation
   5,388.30 : 7,436.54 = 3,030.42 : x
2. Step 2: Convert to fraction form
   5,388.30/7,436.54 = 3,030.42/x
3. Step 3: Cross multiply
   5,388.30x = 7,436.54 × 3,030.42
4. Step 4: Simplify right side
   5,388.30x = 22,535,875.01
5. Step 5: Solve for x
   x = 22,535,875.01/5,388.30
6. Step 6: Final answer
   x = 4,182.37