Finding the Fourth Proportional to 28,832.19, 39,788.72 and 16,086.52

Step by Step Solution

1. Step 1: Write the proportion equation
   28,832.19 : 39,788.72 = 16,086.52 : x
2. Step 2: Convert to fraction form
   28,832.19/39,788.72 = 16,086.52/x
3. Step 3: Cross multiply
   28,832.19x = 39,788.72 × 16,086.52
4. Step 4: Simplify right side
   28,832.19x = 640,062,040.05
5. Step 5: Solve for x
   x = 640,062,040.05/28,832.19
6. Step 6: Final answer
   x = 22,199.56