Finding the Fourth Proportional to 9,303.36, 12,838.74 and 5,111.64

Step by Step Solution

1. Step 1: Write the proportion equation
   9,303.36 : 12,838.74 = 5,111.64 : x
2. Step 2: Convert to fraction form
   9,303.36/12,838.74 = 5,111.64/x
3. Step 3: Cross multiply
   9,303.36x = 12,838.74 × 5,111.64
4. Step 4: Simplify right side
   9,303.36x = 65,627,016.93
5. Step 5: Solve for x
   x = 65,627,016.93/9,303.36
6. Step 6: Final answer
   x = 7,054.12