Finding the Fourth Proportional to 9,617.97, 13,276.34 and 5,642.43

Step by Step Solution

1. Step 1: Write the proportion equation
   9,617.97 : 13,276.34 = 5,642.43 : x
2. Step 2: Convert to fraction form
   9,617.97/13,276.34 = 5,642.43/x
3. Step 3: Cross multiply
   9,617.97x = 13,276.34 × 5,642.43
4. Step 4: Simplify right side
   9,617.97x = 74,910,762.27
5. Step 5: Solve for x
   x = 74,910,762.27/9,617.97
6. Step 6: Final answer
   x = 7,788.62