Finding the Fourth Proportional to 12,702.92, 17,518.59 and 8,222.00

Step by Step Solution

1. Step 1: Write the proportion equation
   12,702.92 : 17,518.59 = 8,222.00 : x
2. Step 2: Convert to fraction form
   12,702.92/17,518.59 = 8,222.00/x
3. Step 3: Cross multiply
   12,702.92x = 17,518.59 × 8,222.00
4. Step 4: Simplify right side
   12,702.92x = 144,037,759.39
5. Step 5: Solve for x
   x = 144,037,759.39/12,702.92
6. Step 6: Final answer
   x = 11,338.95