Finding the Fourth Proportional to 28,587.52, 39,450.72 and 16,012

Step by Step Solution

1. Step 1: Write the proportion equation
   28,587.52 : 39,450.72 = 16,012 : x
2. Step 2: Convert to fraction form
   28,587.52/39,450.72 = 16,012/x
3. Step 3: Cross multiply
   28,587.52x = 39,450.72 × 16,012
4. Step 4: Simplify right side
   28,587.52x = 631,684,928.64
5. Step 5: Solve for x
   x = 631,684,928.64/28,587.52
6. Step 6: Final answer
   x = 22,096.53