Finding the Fourth Proportional to 9,805.72, 13,531.84 and 5,329.38

Step by Step Solution

1. Step 1: Write the proportion equation
   9,805.72 : 13,531.84 = 5,329.38 : x
2. Step 2: Convert to fraction form
   9,805.72/13,531.84 = 5,329.38/x
3. Step 3: Cross multiply
   9,805.72x = 13,531.84 × 5,329.38
4. Step 4: Simplify right side
   9,805.72x = 72,116,317.46
5. Step 5: Solve for x
   x = 72,116,317.46/9,805.72
6. Step 6: Final answer
   x = 7,354.52