Finding the Fourth Proportional to 9,620.22, 13,279.50 and 7,491.54

Step by Step Solution

1. Step 1: Write the proportion equation
   9,620.22 : 13,279.50 = 7,491.54 : x
2. Step 2: Convert to fraction form
   9,620.22/13,279.50 = 7,491.54/x
3. Step 3: Cross multiply
   9,620.22x = 13,279.50 × 7,491.54
4. Step 4: Simplify right side
   9,620.22x = 99,483,905.43
5. Step 5: Solve for x
   x = 99,483,905.43/9,620.22
6. Step 6: Final answer
   x = 10,341.13