Finding the Fourth Proportional to 9,463.18, 12,964.62 and 9,108.48

Step by Step Solution

1. Step 1: Write the proportion equation
   9,463.18 : 12,964.62 = 9,108.48 : x
2. Step 2: Convert to fraction form
   9,463.18/12,964.62 = 9,108.48/x
3. Step 3: Cross multiply
   9,463.18x = 12,964.62 × 9,108.48
4. Step 4: Simplify right side
   9,463.18x = 118,087,981.98
5. Step 5: Solve for x
   x = 118,087,981.98/9,463.18
6. Step 6: Final answer
   x = 12,478.68