Finding the Fourth Proportional to 9,821.29, 13,553.41 and 5,345

Step by Step Solution

1. Step 1: Write the proportion equation
   9,821.29 : 13,553.41 = 5,345 : x
2. Step 2: Convert to fraction form
   9,821.29/13,553.41 = 5,345/x
3. Step 3: Cross multiply
   9,821.29x = 13,553.41 × 5,345
4. Step 4: Simplify right side
   9,821.29x = 72,442,976.45
5. Step 5: Solve for x
   x = 72,442,976.45/9,821.29
6. Step 6: Final answer
   x = 7,376.12