Finding the Fourth Proportional to 9,636.78, 13,296.15 and 5,656.44

Step by Step Solution

1. Step 1: Write the proportion equation
   9,636.78 : 13,296.15 = 5,656.44 : x
2. Step 2: Convert to fraction form
   9,636.78/13,296.15 = 5,656.44/x
3. Step 3: Cross multiply
   9,636.78x = 13,296.15 × 5,656.44
4. Step 4: Simplify right side
   9,636.78x = 75,208,874.71
5. Step 5: Solve for x
   x = 75,208,874.71/9,636.78
6. Step 6: Final answer
   x = 7,804.36