Finding the Fourth Proportional to 10,340.71, 15,510.89 and 2,945.23

Step by Step Solution

1. Step 1: Write the proportion equation
   10,340.71 : 15,510.89 = 2,945.23 : x
2. Step 2: Convert to fraction form
   10,340.71/15,510.89 = 2,945.23/x
3. Step 3: Cross multiply
   10,340.71x = 15,510.89 × 2,945.23
4. Step 4: Simplify right side
   10,340.71x = 45,683,123.83
5. Step 5: Solve for x
   x = 45,683,123.83/10,340.71
6. Step 6: Final answer
   x = 4,417.79