Finding the Fourth Proportional to 9,895.06, 13,654.47 and 5,418.09

Step by Step Solution

1. Step 1: Write the proportion equation
   9,895.06 : 13,654.47 = 5,418.09 : x
2. Step 2: Convert to fraction form
   9,895.06/13,654.47 = 5,418.09/x
3. Step 3: Cross multiply
   9,895.06x = 13,654.47 × 5,418.09
4. Step 4: Simplify right side
   9,895.06x = 73,981,167.68
5. Step 5: Solve for x
   x = 73,981,167.68/9,895.06
6. Step 6: Final answer
   x = 7,476.58