Finding the Fourth Proportional to 9,841.90, 13,581.83 and 5,365.66

Step by Step Solution

1. Step 1: Write the proportion equation
   9,841.90 : 13,581.83 = 5,365.66 : x
2. Step 2: Convert to fraction form
   9,841.90/13,581.83 = 5,365.66/x
3. Step 3: Cross multiply
   9,841.90x = 13,581.83 × 5,365.66
4. Step 4: Simplify right side
   9,841.90x = 72,875,481.96
5. Step 5: Solve for x
   x = 72,875,481.96/9,841.90
6. Step 6: Final answer
   x = 7,404.62