Finding the Fourth Proportional to 9,894.93, 13,654.98 and 5,418.96

Step by Step Solution

1. Step 1: Write the proportion equation
   9,894.93 : 13,654.98 = 5,418.96 : x
2. Step 2: Convert to fraction form
   9,894.93/13,654.98 = 5,418.96/x
3. Step 3: Cross multiply
   9,894.93x = 13,654.98 × 5,418.96
4. Step 4: Simplify right side
   9,894.93x = 73,995,790.42
5. Step 5: Solve for x
   x = 73,995,790.42/9,894.93
6. Step 6: Final answer
   x = 7,478.15