Finding the Fourth Proportional to 12,867.22, 17,759.53 and 7,833.10

Step by Step Solution

1. Step 1: Write the proportion equation
   12,867.22 : 17,759.53 = 7,833.10 : x
2. Step 2: Convert to fraction form
   12,867.22/17,759.53 = 7,833.10/x
3. Step 3: Cross multiply
   12,867.22x = 17,759.53 × 7,833.10
4. Step 4: Simplify right side
   12,867.22x = 139,112,110.46
5. Step 5: Solve for x
   x = 139,112,110.46/12,867.22
6. Step 6: Final answer
   x = 10,811.36