Finding the Fourth Proportional to 19,615.57, 27,068.35 and 10,663

Step by Step Solution

1. Step 1: Write the proportion equation
   19,615.57 : 27,068.35 = 10,663 : x
2. Step 2: Convert to fraction form
   19,615.57/27,068.35 = 10,663/x
3. Step 3: Cross multiply
   19,615.57x = 27,068.35 × 10,663
4. Step 4: Simplify right side
   19,615.57x = 288,629,816.05
5. Step 5: Solve for x
   x = 288,629,816.05/19,615.57
6. Step 6: Final answer
   x = 14,714.32