Finding the Fourth Proportional to 16,390.53, 24,565.20 and 7,019.50

Step by Step Solution

1. Step 1: Write the proportion equation
   16,390.53 : 24,565.20 = 7,019.50 : x
2. Step 2: Convert to fraction form
   16,390.53/24,565.20 = 7,019.50/x
3. Step 3: Cross multiply
   16,390.53x = 24,565.20 × 7,019.50
4. Step 4: Simplify right side
   16,390.53x = 172,435,421.40
5. Step 5: Solve for x
   x = 172,435,421.40/16,390.53
6. Step 6: Final answer
   x = 10,520.43