Finding the Fourth Proportional to 9,729.60, 13,426.29 and 5,751.09

Step by Step Solution

1. Step 1: Write the proportion equation
   9,729.60 : 13,426.29 = 5,751.09 : x
2. Step 2: Convert to fraction form
   9,729.60/13,426.29 = 5,751.09/x
3. Step 3: Cross multiply
   9,729.60x = 13,426.29 × 5,751.09
4. Step 4: Simplify right side
   9,729.60x = 77,215,802.16
5. Step 5: Solve for x
   x = 77,215,802.16/9,729.60
6. Step 6: Final answer
   x = 7,936.17