Finding the Fourth Proportional to 28,667.79, 39,555.14 and 16,091.73

Step by Step Solution

1. Step 1: Write the proportion equation
   28,667.79 : 39,555.14 = 16,091.73 : x
2. Step 2: Convert to fraction form
   28,667.79/39,555.14 = 16,091.73/x
3. Step 3: Cross multiply
   28,667.79x = 39,555.14 × 16,091.73
4. Step 4: Simplify right side
   28,667.79x = 636,510,552.53
5. Step 5: Solve for x
   x = 636,510,552.53/28,667.79
6. Step 6: Final answer
   x = 22,202.99