Finding the Fourth Proportional to 28,796.88, 43,162.38 and 12,131.94

Step by Step Solution

1. Step 1: Write the proportion equation
   28,796.88 : 43,162.38 = 12,131.94 : x
2. Step 2: Convert to fraction form
   28,796.88/43,162.38 = 12,131.94/x
3. Step 3: Cross multiply
   28,796.88x = 43,162.38 × 12,131.94
4. Step 4: Simplify right side
   28,796.88x = 523,643,404.42
5. Step 5: Solve for x
   x = 523,643,404.42/28,796.88
6. Step 6: Final answer
   x = 18,184.03