Finding the Fourth Proportional to 9,463.69, 12,965.31 and 9,108.98

Step by Step Solution

1. Step 1: Write the proportion equation
   9,463.69 : 12,965.31 = 9,108.98 : x
2. Step 2: Convert to fraction form
   9,463.69/12,965.31 = 9,108.98/x
3. Step 3: Cross multiply
   9,463.69x = 12,965.31 × 9,108.98
4. Step 4: Simplify right side
   9,463.69x = 118,100,781.90
5. Step 5: Solve for x
   x = 118,100,781.90/9,463.69
6. Step 6: Final answer
   x = 12,479.36