Finding the Fourth Proportional to 10,355.84, 15,531.15 and 2,960.34

Step by Step Solution

1. Step 1: Write the proportion equation
   10,355.84 : 15,531.15 = 2,960.34 : x
2. Step 2: Convert to fraction form
   10,355.84/15,531.15 = 2,960.34/x
3. Step 3: Cross multiply
   10,355.84x = 15,531.15 × 2,960.34
4. Step 4: Simplify right side
   10,355.84x = 45,977,484.59
5. Step 5: Solve for x
   x = 45,977,484.59/10,355.84
6. Step 6: Final answer
   x = 4,439.76