Finding the Fourth Proportional to 8,976.42, 13,476.78 and 7,008.12

Step by Step Solution

1. Step 1: Write the proportion equation
   8,976.42 : 13,476.78 = 7,008.12 : x
2. Step 2: Convert to fraction form
   8,976.42/13,476.78 = 7,008.12/x
3. Step 3: Cross multiply
   8,976.42x = 13,476.78 × 7,008.12
4. Step 4: Simplify right side
   8,976.42x = 94,446,891.45
5. Step 5: Solve for x
   x = 94,446,891.45/8,976.42
6. Step 6: Final answer
   x = 10,521.67