Finding the Fourth Proportional to 9,788.04, 13,495.86 and 7,426.08

Step by Step Solution

1. Step 1: Write the proportion equation
   9,788.04 : 13,495.86 = 7,426.08 : x
2. Step 2: Convert to fraction form
   9,788.04/13,495.86 = 7,426.08/x
3. Step 3: Cross multiply
   9,788.04x = 13,495.86 × 7,426.08
4. Step 4: Simplify right side
   9,788.04x = 100,221,336.03
5. Step 5: Solve for x
   x = 100,221,336.03/9,788.04
6. Step 6: Final answer
   x = 10,239.16