Finding the Fourth Proportional to 6,889.89, 10,334.61 and 2,994.30

Step by Step Solution

1. Step 1: Write the proportion equation
   6,889.89 : 10,334.61 = 2,994.30 : x
2. Step 2: Convert to fraction form
   6,889.89/10,334.61 = 2,994.30/x
3. Step 3: Cross multiply
   6,889.89x = 10,334.61 × 2,994.30
4. Step 4: Simplify right side
   6,889.89x = 30,944,922.72
5. Step 5: Solve for x
   x = 30,944,922.72/6,889.89
6. Step 6: Final answer
   x = 4,491.35