Finding the Fourth Proportional to 5,300.89, 7,315.31 and 2,943.05

Step by Step Solution

1. Step 1: Write the proportion equation
   5,300.89 : 7,315.31 = 2,943.05 : x
2. Step 2: Convert to fraction form
   5,300.89/7,315.31 = 2,943.05/x
3. Step 3: Cross multiply
   5,300.89x = 7,315.31 × 2,943.05
4. Step 4: Simplify right side
   5,300.89x = 21,529,308.38
5. Step 5: Solve for x
   x = 21,529,308.38/5,300.89
6. Step 6: Final answer
   x = 4,061.46