Finding the Fourth Proportional to 9,837.91, 13,575.97 and 5,361.57

Step by Step Solution

1. Step 1: Write the proportion equation
   9,837.91 : 13,575.97 = 5,361.57 : x
2. Step 2: Convert to fraction form
   9,837.91/13,575.97 = 5,361.57/x
3. Step 3: Cross multiply
   9,837.91x = 13,575.97 × 5,361.57
4. Step 4: Simplify right side
   9,837.91x = 72,788,500.07
5. Step 5: Solve for x
   x = 72,788,500.07/9,837.91
6. Step 6: Final answer
   x = 7,398.78