Finding the Fourth Proportional to 8,810.63, 12,159.03 and 4,831.89

Step by Step Solution

1. Step 1: Write the proportion equation
   8,810.63 : 12,159.03 = 4,831.89 : x
2. Step 2: Convert to fraction form
   8,810.63/12,159.03 = 4,831.89/x
3. Step 3: Cross multiply
   8,810.63x = 12,159.03 × 4,831.89
4. Step 4: Simplify right side
   8,810.63x = 58,751,095.47
5. Step 5: Solve for x
   x = 58,751,095.47/8,810.63
6. Step 6: Final answer
   x = 6,668.21