Finding the Fourth Proportional to 12,864.96, 17,770.32 and 10,635.84

Step by Step Solution

1. Step 1: Write the proportion equation
   12,864.96 : 17,770.32 = 10,635.84 : x
2. Step 2: Convert to fraction form
   12,864.96/17,770.32 = 10,635.84/x
3. Step 3: Cross multiply
   12,864.96x = 17,770.32 × 10,635.84
4. Step 4: Simplify right side
   12,864.96x = 189,002,280.27
5. Step 5: Solve for x
   x = 189,002,280.27/12,864.96
6. Step 6: Final answer
   x = 14,691.25