Finding the Fourth Proportional to 37,142.11, 55,718.69 and 13,451.43

Step by Step Solution

1. Step 1: Write the proportion equation
   37,142.11 : 55,718.69 = 13,451.43 : x
2. Step 2: Convert to fraction form
   37,142.11/55,718.69 = 13,451.43/x
3. Step 3: Cross multiply
   37,142.11x = 55,718.69 × 13,451.43
4. Step 4: Simplify right side
   37,142.11x = 749,496,199.91
5. Step 5: Solve for x
   x = 749,496,199.91/37,142.11
6. Step 6: Final answer
   x = 20,179.15