Finding the Fourth Proportional to 9,837.31, 13,575.50 and 5,361.07

Step by Step Solution

1. Step 1: Write the proportion equation
   9,837.31 : 13,575.50 = 5,361.07 : x
2. Step 2: Convert to fraction form
   9,837.31/13,575.50 = 5,361.07/x
3. Step 3: Cross multiply
   9,837.31x = 13,575.50 × 5,361.07
4. Step 4: Simplify right side
   9,837.31x = 72,779,208.88
5. Step 5: Solve for x
   x = 72,779,208.88/9,837.31
6. Step 6: Final answer
   x = 7,398.28