Finding the Fourth Proportional to 9,994.10, 13,791.72 and 5,518.04

Step by Step Solution

1. Step 1: Write the proportion equation
   9,994.10 : 13,791.72 = 5,518.04 : x
2. Step 2: Convert to fraction form
   9,994.10/13,791.72 = 5,518.04/x
3. Step 3: Cross multiply
   9,994.10x = 13,791.72 × 5,518.04
4. Step 4: Simplify right side
   9,994.10x = 76,103,262.63
5. Step 5: Solve for x
   x = 76,103,262.63/9,994.10
6. Step 6: Final answer
   x = 7,614.82