Finding the Fourth Proportional to 12,826.50, 17,702.22 and 7,237.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,826.50 : 17,702.22 = 7,237.50 : x
2. Step 2: Convert to fraction form
   12,826.50/17,702.22 = 7,237.50/x
3. Step 3: Cross multiply
   12,826.50x = 17,702.22 × 7,237.50
4. Step 4: Simplify right side
   12,826.50x = 128,119,817.25
5. Step 5: Solve for x
   x = 128,119,817.25/12,826.50
6. Step 6: Final answer
   x = 9,988.68