Finding the Fourth Proportional to 28,086.79, 38,747.73 and 16,147.59

Step by Step Solution

1. Step 1: Write the proportion equation
   28,086.79 : 38,747.73 = 16,147.59 : x
2. Step 2: Convert to fraction form
   28,086.79/38,747.73 = 16,147.59/x
3. Step 3: Cross multiply
   28,086.79x = 38,747.73 × 16,147.59
4. Step 4: Simplify right side
   28,086.79x = 625,682,457.47
5. Step 5: Solve for x
   x = 625,682,457.47/28,086.79
6. Step 6: Final answer
   x = 22,276.75