Finding the Fourth Proportional to 6,128.75, 9,178.50 and 3,526.22

Step by Step Solution

1. Step 1: Write the proportion equation
   6,128.75 : 9,178.50 = 3,526.22 : x
2. Step 2: Convert to fraction form
   6,128.75/9,178.50 = 3,526.22/x
3. Step 3: Cross multiply
   6,128.75x = 9,178.50 × 3,526.22
4. Step 4: Simplify right side
   6,128.75x = 32,365,410.27
5. Step 5: Solve for x
   x = 32,365,410.27/6,128.75
6. Step 6: Final answer
   x = 5,280.92