Finding the Fourth Proportional to 12,663.83, 17,476.04 and 6,998.42

Step by Step Solution

1. Step 1: Write the proportion equation
   12,663.83 : 17,476.04 = 6,998.42 : x
2. Step 2: Convert to fraction form
   12,663.83/17,476.04 = 6,998.42/x
3. Step 3: Cross multiply
   12,663.83x = 17,476.04 × 6,998.42
4. Step 4: Simplify right side
   12,663.83x = 122,304,632.86
5. Step 5: Solve for x
   x = 122,304,632.86/12,663.83
6. Step 6: Final answer
   x = 9,657.79