Finding the Fourth Proportional to 9,841.40, 13,580.72 and 5,365.04

Step by Step Solution

1. Step 1: Write the proportion equation
   9,841.40 : 13,580.72 = 5,365.04 : x
2. Step 2: Convert to fraction form
   9,841.40/13,580.72 = 5,365.04/x
3. Step 3: Cross multiply
   9,841.40x = 13,580.72 × 5,365.04
4. Step 4: Simplify right side
   9,841.40x = 72,861,106.03
5. Step 5: Solve for x
   x = 72,861,106.03/9,841.40
6. Step 6: Final answer
   x = 7,403.53