Finding the Fourth Proportional to 9,802.08, 13,528.80 and 5,613.12

Step by Step Solution

1. Step 1: Write the proportion equation
   9,802.08 : 13,528.80 = 5,613.12 : x
2. Step 2: Convert to fraction form
   9,802.08/13,528.80 = 5,613.12/x
3. Step 3: Cross multiply
   9,802.08x = 13,528.80 × 5,613.12
4. Step 4: Simplify right side
   9,802.08x = 75,938,777.86
5. Step 5: Solve for x
   x = 75,938,777.86/9,802.08
6. Step 6: Final answer
   x = 7,747.21