Finding the Fourth Proportional to 5,117.78, 7,063.72 and 2,994.30

Step by Step Solution

1. Step 1: Write the proportion equation
   5,117.78 : 7,063.72 = 2,994.30 : x
2. Step 2: Convert to fraction form
   5,117.78/7,063.72 = 2,994.30/x
3. Step 3: Cross multiply
   5,117.78x = 7,063.72 × 2,994.30
4. Step 4: Simplify right side
   5,117.78x = 21,150,896.80
5. Step 5: Solve for x
   x = 21,150,896.80/5,117.78
6. Step 6: Final answer
   x = 4,132.83