Finding the Fourth Proportional to 13,022.42, 17,969.01 and 7,355.66

Step by Step Solution

1. Step 1: Write the proportion equation
   13,022.42 : 17,969.01 = 7,355.66 : x
2. Step 2: Convert to fraction form
   13,022.42/17,969.01 = 7,355.66/x
3. Step 3: Cross multiply
   13,022.42x = 17,969.01 × 7,355.66
4. Step 4: Simplify right side
   13,022.42x = 132,173,928.10
5. Step 5: Solve for x
   x = 132,173,928.10/13,022.42
6. Step 6: Final answer
   x = 10,149.72