Finding the Fourth Proportional to 6,128.66, 9,185.69 and 3,526.13

Step by Step Solution

1. Step 1: Write the proportion equation
   6,128.66 : 9,185.69 = 3,526.13 : x
2. Step 2: Convert to fraction form
   6,128.66/9,185.69 = 3,526.13/x
3. Step 3: Cross multiply
   6,128.66x = 9,185.69 × 3,526.13
4. Step 4: Simplify right side
   6,128.66x = 32,389,873.52
5. Step 5: Solve for x
   x = 32,389,873.52/6,128.66
6. Step 6: Final answer
   x = 5,284.99