Finding the Fourth Proportional to 9,620.67, 13,284.04 and 7,379.00

Step by Step Solution

1. Step 1: Write the proportion equation
   9,620.67 : 13,284.04 = 7,379.00 : x
2. Step 2: Convert to fraction form
   9,620.67/13,284.04 = 7,379.00/x
3. Step 3: Cross multiply
   9,620.67x = 13,284.04 × 7,379.00
4. Step 4: Simplify right side
   9,620.67x = 98,022,864.74
5. Step 5: Solve for x
   x = 98,022,864.74/9,620.67
6. Step 6: Final answer
   x = 10,188.78