Finding the Fourth Proportional to 5,287.72, 7,297.12 and 2,929.94

Step by Step Solution

1. Step 1: Write the proportion equation
   5,287.72 : 7,297.12 = 2,929.94 : x
2. Step 2: Convert to fraction form
   5,287.72/7,297.12 = 2,929.94/x
3. Step 3: Cross multiply
   5,287.72x = 7,297.12 × 2,929.94
4. Step 4: Simplify right side
   5,287.72x = 21,380,123.77
5. Step 5: Solve for x
   x = 21,380,123.77/5,287.72
6. Step 6: Final answer
   x = 4,043.35