Finding the Fourth Proportional to 33,145.74, 49,718.15 and 12,090.42

Step by Step Solution

1. Step 1: Write the proportion equation
   33,145.74 : 49,718.15 = 12,090.42 : x
2. Step 2: Convert to fraction form
   33,145.74/49,718.15 = 12,090.42/x
3. Step 3: Cross multiply
   33,145.74x = 49,718.15 × 12,090.42
4. Step 4: Simplify right side
   33,145.74x = 601,113,066.53
5. Step 5: Solve for x
   x = 601,113,066.53/33,145.74
6. Step 6: Final answer
   x = 18,135.46