Finding the Fourth Proportional to 8,128.03, 12,190.22 and 4,842.06

Step by Step Solution

1. Step 1: Write the proportion equation
   8,128.03 : 12,190.22 = 4,842.06 : x
2. Step 2: Convert to fraction form
   8,128.03/12,190.22 = 4,842.06/x
3. Step 3: Cross multiply
   8,128.03x = 12,190.22 × 4,842.06
4. Step 4: Simplify right side
   8,128.03x = 59,025,776.65
5. Step 5: Solve for x
   x = 59,025,776.65/8,128.03
6. Step 6: Final answer
   x = 7,262.00