Finding the Fourth Proportional to 9,873.56, 13,625.48 and 5,397.31

Step by Step Solution

1. Step 1: Write the proportion equation
   9,873.56 : 13,625.48 = 5,397.31 : x
2. Step 2: Convert to fraction form
   9,873.56/13,625.48 = 5,397.31/x
3. Step 3: Cross multiply
   9,873.56x = 13,625.48 × 5,397.31
4. Step 4: Simplify right side
   9,873.56x = 73,540,878.41
5. Step 5: Solve for x
   x = 73,540,878.41/9,873.56
6. Step 6: Final answer
   x = 7,448.27