Finding the Fourth Proportional to 28,081.99, 42,093.82 and 11,434.87

Step by Step Solution

1. Step 1: Write the proportion equation
   28,081.99 : 42,093.82 = 11,434.87 : x
2. Step 2: Convert to fraction form
   28,081.99/42,093.82 = 11,434.87/x
3. Step 3: Cross multiply
   28,081.99x = 42,093.82 × 11,434.87
4. Step 4: Simplify right side
   28,081.99x = 481,337,359.50
5. Step 5: Solve for x
   x = 481,337,359.50/28,081.99
6. Step 6: Final answer
   x = 17,140.43