Finding the Fourth Proportional to 6,614.88, 9,128.52 and 3,820.38

Step by Step Solution

1. Step 1: Write the proportion equation
   6,614.88 : 9,128.52 = 3,820.38 : x
2. Step 2: Convert to fraction form
   6,614.88/9,128.52 = 3,820.38/x
3. Step 3: Cross multiply
   6,614.88x = 9,128.52 × 3,820.38
4. Step 4: Simplify right side
   6,614.88x = 34,874,415.24
5. Step 5: Solve for x
   x = 34,874,415.24/6,614.88
6. Step 6: Final answer
   x = 5,272.12