Finding the Fourth Proportional to 5,388.16, 7,435.72 and 3,030.30

Step by Step Solution

1. Step 1: Write the proportion equation
   5,388.16 : 7,435.72 = 3,030.30 : x
2. Step 2: Convert to fraction form
   5,388.16/7,435.72 = 3,030.30/x
3. Step 3: Cross multiply
   5,388.16x = 7,435.72 × 3,030.30
4. Step 4: Simplify right side
   5,388.16x = 22,532,464.17
5. Step 5: Solve for x
   x = 22,532,464.17/5,388.16
6. Step 6: Final answer
   x = 4,181.85