Finding the Fourth Proportional to 6,614.56, 9,128.88 and 3,820.08

Step by Step Solution

1. Step 1: Write the proportion equation
   6,614.56 : 9,128.88 = 3,820.08 : x
2. Step 2: Convert to fraction form
   6,614.56/9,128.88 = 3,820.08/x
3. Step 3: Cross multiply
   6,614.56x = 9,128.88 × 3,820.08
4. Step 4: Simplify right side
   6,614.56x = 34,873,051.91
5. Step 5: Solve for x
   x = 34,873,051.91/6,614.56
6. Step 6: Final answer
   x = 5,272.17