Finding the Fourth Proportional to 17,520.32, 24,190.56 and 10,815.05

Step by Step Solution

1. Step 1: Write the proportion equation
   17,520.32 : 24,190.56 = 10,815.05 : x
2. Step 2: Convert to fraction form
   17,520.32/24,190.56 = 10,815.05/x
3. Step 3: Cross multiply
   17,520.32x = 24,190.56 × 10,815.05
4. Step 4: Simplify right side
   17,520.32x = 261,622,176.40
5. Step 5: Solve for x
   x = 261,622,176.40/17,520.32
6. Step 6: Final answer
   x = 14,932.50