Finding the Fourth Proportional to 10,961.79, 16,447.37 and 7,265.31

Step by Step Solution

1. Step 1: Write the proportion equation
   10,961.79 : 16,447.37 = 7,265.31 : x
2. Step 2: Convert to fraction form
   10,961.79/16,447.37 = 7,265.31/x
3. Step 3: Cross multiply
   10,961.79x = 16,447.37 × 7,265.31
4. Step 4: Simplify right side
   10,961.79x = 119,495,205.41
5. Step 5: Solve for x
   x = 119,495,205.41/10,961.79
6. Step 6: Final answer
   x = 10,901.07