Finding the Fourth Proportional to 5,457.56, 8,189.90 and 2,994.10

Step by Step Solution

1. Step 1: Write the proportion equation
   5,457.56 : 8,189.90 = 2,994.10 : x
2. Step 2: Convert to fraction form
   5,457.56/8,189.90 = 2,994.10/x
3. Step 3: Cross multiply
   5,457.56x = 8,189.90 × 2,994.10
4. Step 4: Simplify right side
   5,457.56x = 24,521,379.59
5. Step 5: Solve for x
   x = 24,521,379.59/5,457.56
6. Step 6: Final answer
   x = 4,493.10