Finding the Fourth Proportional to 5,396.88, 7,443.72 and 4,070.64

Step by Step Solution

1. Step 1: Write the proportion equation
   5,396.88 : 7,443.72 = 4,070.64 : x
2. Step 2: Convert to fraction form
   5,396.88/7,443.72 = 4,070.64/x
3. Step 3: Cross multiply
   5,396.88x = 7,443.72 × 4,070.64
4. Step 4: Simplify right side
   5,396.88x = 30,300,704.38
5. Step 5: Solve for x
   x = 30,300,704.38/5,396.88
6. Step 6: Final answer
   x = 5,614.49