Finding the Fourth Proportional to 5,109.54, 7,649.55 and 2,994.78

Step by Step Solution

1. Step 1: Write the proportion equation
   5,109.54 : 7,649.55 = 2,994.78 : x
2. Step 2: Convert to fraction form
   5,109.54/7,649.55 = 2,994.78/x
3. Step 3: Cross multiply
   5,109.54x = 7,649.55 × 2,994.78
4. Step 4: Simplify right side
   5,109.54x = 22,908,719.35
5. Step 5: Solve for x
   x = 22,908,719.35/5,109.54
6. Step 6: Final answer
   x = 4,483.52