Finding the Fourth Proportional to 8,994.08, 12,412.78 and 5,216.10

Step by Step Solution

1. Step 1: Write the proportion equation
   8,994.08 : 12,412.78 = 5,216.10 : x
2. Step 2: Convert to fraction form
   8,994.08/12,412.78 = 5,216.10/x
3. Step 3: Cross multiply
   8,994.08x = 12,412.78 × 5,216.10
4. Step 4: Simplify right side
   8,994.08x = 64,746,301.76
5. Step 5: Solve for x
   x = 64,746,301.76/8,994.08
6. Step 6: Final answer
   x = 7,198.77