Finding the Fourth Proportional to 17,642.80, 24,347.64 and 10,086.40

Step by Step Solution

1. Step 1: Write the proportion equation
   17,642.80 : 24,347.64 = 10,086.40 : x
2. Step 2: Convert to fraction form
   17,642.80/24,347.64 = 10,086.40/x
3. Step 3: Cross multiply
   17,642.80x = 24,347.64 × 10,086.40
4. Step 4: Simplify right side
   17,642.80x = 245,580,036.10
5. Step 5: Solve for x
   x = 245,580,036.10/17,642.80
6. Step 6: Final answer
   x = 13,919.56