Finding the Fourth Proportional to 40,168.04, 60,260.49 and 12,090.15

Step by Step Solution

1. Step 1: Write the proportion equation
   40,168.04 : 60,260.49 = 12,090.15 : x
2. Step 2: Convert to fraction form
   40,168.04/60,260.49 = 12,090.15/x
3. Step 3: Cross multiply
   40,168.04x = 60,260.49 × 12,090.15
4. Step 4: Simplify right side
   40,168.04x = 728,558,091.86
5. Step 5: Solve for x
   x = 728,558,091.86/40,168.04
6. Step 6: Final answer
   x = 18,137.76