Finding the Fourth Proportional to 10,003.92, 13,796.19 and 9,209.00

Step by Step Solution

1. Step 1: Write the proportion equation
   10,003.92 : 13,796.19 = 9,209.00 : x
2. Step 2: Convert to fraction form
   10,003.92/13,796.19 = 9,209.00/x
3. Step 3: Cross multiply
   10,003.92x = 13,796.19 × 9,209.00
4. Step 4: Simplify right side
   10,003.92x = 127,049,148.20
5. Step 5: Solve for x
   x = 127,049,148.20/10,003.92
6. Step 6: Final answer
   x = 12,699.94