Finding the Fourth Proportional to 11,020.86, 16,432.47 and 10,824.03

Step by Step Solution

1. Step 1: Write the proportion equation
   11,020.86 : 16,432.47 = 10,824.03 : x
2. Step 2: Convert to fraction form
   11,020.86/16,432.47 = 10,824.03/x
3. Step 3: Cross multiply
   11,020.86x = 16,432.47 × 10,824.03
4. Step 4: Simplify right side
   11,020.86x = 177,865,548.25
5. Step 5: Solve for x
   x = 177,865,548.25/11,020.86
6. Step 6: Final answer
   x = 16,138.99