Finding the Fourth Proportional to 11,148.30, 16,690.05 and 10,824.30

Step by Step Solution

1. Step 1: Write the proportion equation
   11,148.30 : 16,690.05 = 10,824.30 : x
2. Step 2: Convert to fraction form
   11,148.30/16,690.05 = 10,824.30/x
3. Step 3: Cross multiply
   11,148.30x = 16,690.05 × 10,824.30
4. Step 4: Simplify right side
   11,148.30x = 180,658,108.22
5. Step 5: Solve for x
   x = 180,658,108.22/11,148.30
6. Step 6: Final answer
   x = 16,204.99