Finding the Fourth Proportional to 10,245.35, 14,144.60 and 9,654.86

Step by Step Solution

1. Step 1: Write the proportion equation
   10,245.35 : 14,144.60 = 9,654.86 : x
2. Step 2: Convert to fraction form
   10,245.35/14,144.60 = 9,654.86/x
3. Step 3: Cross multiply
   10,245.35x = 14,144.60 × 9,654.86
4. Step 4: Simplify right side
   10,245.35x = 136,564,086.17
5. Step 5: Solve for x
   x = 136,564,086.17/10,245.35
6. Step 6: Final answer
   x = 13,329.38