Finding the Fourth Proportional to 9,150.42, 13,722.42 and 3,225.78

Step by Step Solution

1. Step 1: Write the proportion equation
   9,150.42 : 13,722.42 = 3,225.78 : x
2. Step 2: Convert to fraction form
   9,150.42/13,722.42 = 3,225.78/x
3. Step 3: Cross multiply
   9,150.42x = 13,722.42 × 3,225.78
4. Step 4: Simplify right side
   9,150.42x = 44,265,507.99
5. Step 5: Solve for x
   x = 44,265,507.99/9,150.42
6. Step 6: Final answer
   x = 4,837.54