Finding the Fourth Proportional to 8,945.01, 12,340.97 and 5,168.07

Step by Step Solution

1. Step 1: Write the proportion equation
   8,945.01 : 12,340.97 = 5,168.07 : x
2. Step 2: Convert to fraction form
   8,945.01/12,340.97 = 5,168.07/x
3. Step 3: Cross multiply
   8,945.01x = 12,340.97 × 5,168.07
4. Step 4: Simplify right side
   8,945.01x = 63,778,996.83
5. Step 5: Solve for x
   x = 63,778,996.83/8,945.01
6. Step 6: Final answer
   x = 7,130.12