Finding the Fourth Proportional to 16,465.05, 22,705.59 and 15,099.06

Step by Step Solution

1. Step 1: Write the proportion equation
   16,465.05 : 22,705.59 = 15,099.06 : x
2. Step 2: Convert to fraction form
   16,465.05/22,705.59 = 15,099.06/x
3. Step 3: Cross multiply
   16,465.05x = 22,705.59 × 15,099.06
4. Step 4: Simplify right side
   16,465.05x = 342,833,065.75
5. Step 5: Solve for x
   x = 342,833,065.75/16,465.05
6. Step 6: Final answer
   x = 20,821.87