Finding the Fourth Proportional to 17,663.20, 24,374.72 and 9,705.42

Step by Step Solution

1. Step 1: Write the proportion equation
   17,663.20 : 24,374.72 = 9,705.42 : x
2. Step 2: Convert to fraction form
   17,663.20/24,374.72 = 9,705.42/x
3. Step 3: Cross multiply
   17,663.20x = 24,374.72 × 9,705.42
4. Step 4: Simplify right side
   17,663.20x = 236,566,919.25
5. Step 5: Solve for x
   x = 236,566,919.25/17,663.20
6. Step 6: Final answer
   x = 13,393.21