Finding the Fourth Proportional to 12,090.83, 18,134.15 and 3,206.22

Step by Step Solution

1. Step 1: Write the proportion equation
   12,090.83 : 18,134.15 = 3,206.22 : x
2. Step 2: Convert to fraction form
   12,090.83/18,134.15 = 3,206.22/x
3. Step 3: Cross multiply
   12,090.83x = 18,134.15 × 3,206.22
4. Step 4: Simplify right side
   12,090.83x = 58,142,058.38
5. Step 5: Solve for x
   x = 58,142,058.38/12,090.83
6. Step 6: Final answer
   x = 4,808.78