Finding the Fourth Proportional to 4,042.71, 5,580.50 and 3,113.91

Step by Step Solution

1. Step 1: Write the proportion equation
   4,042.71 : 5,580.50 = 3,113.91 : x
2. Step 2: Convert to fraction form
   4,042.71/5,580.50 = 3,113.91/x
3. Step 3: Cross multiply
   4,042.71x = 5,580.50 × 3,113.91
4. Step 4: Simplify right side
   4,042.71x = 17,377,159.19
5. Step 5: Solve for x
   x = 17,377,159.19/4,042.71
6. Step 6: Final answer
   x = 4,298.39