Finding the Fourth Proportional to 9,873.72, 13,626.06 and 5,397.38

Step by Step Solution

1. Step 1: Write the proportion equation
   9,873.72 : 13,626.06 = 5,397.38 : x
2. Step 2: Convert to fraction form
   9,873.72/13,626.06 = 5,397.38/x
3. Step 3: Cross multiply
   9,873.72x = 13,626.06 × 5,397.38
4. Step 4: Simplify right side
   9,873.72x = 73,544,955.59
5. Step 5: Solve for x
   x = 73,544,955.59/9,873.72
6. Step 6: Final answer
   x = 7,448.56