Finding the Fourth Proportional to 5,300.90, 7,315.22 and 2,943.05

Step by Step Solution

1. Step 1: Write the proportion equation
   5,300.90 : 7,315.22 = 2,943.05 : x
2. Step 2: Convert to fraction form
   5,300.90/7,315.22 = 2,943.05/x
3. Step 3: Cross multiply
   5,300.90x = 7,315.22 × 2,943.05
4. Step 4: Simplify right side
   5,300.90x = 21,529,006.93
5. Step 5: Solve for x
   x = 21,529,006.93/5,300.90
6. Step 6: Final answer
   x = 4,061.39