Finding the Fourth Proportional to 9,821.49, 13,553.46 and 5,345.34

Step by Step Solution

1. Step 1: Write the proportion equation
   9,821.49 : 13,553.46 = 5,345.34 : x
2. Step 2: Convert to fraction form
   9,821.49/13,553.46 = 5,345.34/x
3. Step 3: Cross multiply
   9,821.49x = 13,553.46 × 5,345.34
4. Step 4: Simplify right side
   9,821.49x = 72,447,851.88
5. Step 5: Solve for x
   x = 72,447,851.88/9,821.49
6. Step 6: Final answer
   x = 7,376.46