Finding the Fourth Proportional to 12,279.56, 16,947.98 and 7,243.48

Step by Step Solution

1. Step 1: Write the proportion equation
   12,279.56 : 16,947.98 = 7,243.48 : x
2. Step 2: Convert to fraction form
   12,279.56/16,947.98 = 7,243.48/x
3. Step 3: Cross multiply
   12,279.56x = 16,947.98 × 7,243.48
4. Step 4: Simplify right side
   12,279.56x = 122,762,354.17
5. Step 5: Solve for x
   x = 122,762,354.17/12,279.56
6. Step 6: Final answer
   x = 9,997.29