Finding the Fourth Proportional to 5,411.39, 8,112.28 and 2,913.94

Step by Step Solution

1. Step 1: Write the proportion equation
   5,411.39 : 8,112.28 = 2,913.94 : x
2. Step 2: Convert to fraction form
   5,411.39/8,112.28 = 2,913.94/x
3. Step 3: Cross multiply
   5,411.39x = 8,112.28 × 2,913.94
4. Step 4: Simplify right side
   5,411.39x = 23,638,700.04
5. Step 5: Solve for x
   x = 23,638,700.04/5,411.39
6. Step 6: Final answer
   x = 4,368.32