Finding the Fourth Proportional to 8,991.83, 12,408.14 and 5,214.69

Step by Step Solution

1. Step 1: Write the proportion equation
   8,991.83 : 12,408.14 = 5,214.69 : x
2. Step 2: Convert to fraction form
   8,991.83/12,408.14 = 5,214.69/x
3. Step 3: Cross multiply
   8,991.83x = 12,408.14 × 5,214.69
4. Step 4: Simplify right side
   8,991.83x = 64,704,577.50
5. Step 5: Solve for x
   x = 64,704,577.50/8,991.83
6. Step 6: Final answer
   x = 7,195.93