Finding the Fourth Proportional to 9,581.69, 13,220.74 and 5,602.03

Step by Step Solution

1. Step 1: Write the proportion equation
   9,581.69 : 13,220.74 = 5,602.03 : x
2. Step 2: Convert to fraction form
   9,581.69/13,220.74 = 5,602.03/x
3. Step 3: Cross multiply
   9,581.69x = 13,220.74 × 5,602.03
4. Step 4: Simplify right side
   9,581.69x = 74,062,968.10
5. Step 5: Solve for x
   x = 74,062,968.10/9,581.69
6. Step 6: Final answer
   x = 7,729.64