Finding the Fourth Proportional to 9,622.56, 13,279.50 and 7,943.16

Step by Step Solution

1. Step 1: Write the proportion equation
   9,622.56 : 13,279.50 = 7,943.16 : x
2. Step 2: Convert to fraction form
   9,622.56/13,279.50 = 7,943.16/x
3. Step 3: Cross multiply
   9,622.56x = 13,279.50 × 7,943.16
4. Step 4: Simplify right side
   9,622.56x = 105,481,193.22
5. Step 5: Solve for x
   x = 105,481,193.22/9,622.56
6. Step 6: Final answer
   x = 10,961.86