Finding the Fourth Proportional to 9,842.13, 13,581.87 and 5,365.98

Step by Step Solution

1. Step 1: Write the proportion equation
   9,842.13 : 13,581.87 = 5,365.98 : x
2. Step 2: Convert to fraction form
   9,842.13/13,581.87 = 5,365.98/x
3. Step 3: Cross multiply
   9,842.13x = 13,581.87 × 5,365.98
4. Step 4: Simplify right side
   9,842.13x = 72,880,042.78
5. Step 5: Solve for x
   x = 72,880,042.78/9,842.13
6. Step 6: Final answer
   x = 7,404.91