Finding the Fourth Proportional to 28,091, 38,765.72 and 16,155.04

Step by Step Solution

1. Step 1: Write the proportion equation
   28,091 : 38,765.72 = 16,155.04 : x
2. Step 2: Convert to fraction form
   28,091/38,765.72 = 16,155.04/x
3. Step 3: Cross multiply
   28,091x = 38,765.72 × 16,155.04
4. Step 4: Simplify right side
   28,091x = 626,261,757.23
5. Step 5: Solve for x
   x = 626,261,757.23/28,091
6. Step 6: Final answer
   x = 22,294.04