Finding the Fourth Proportional to 9,947.22, 13,722.56 and 5,961.41

Step by Step Solution

1. Step 1: Write the proportion equation
   9,947.22 : 13,722.56 = 5,961.41 : x
2. Step 2: Convert to fraction form
   9,947.22/13,722.56 = 5,961.41/x
3. Step 3: Cross multiply
   9,947.22x = 13,722.56 × 5,961.41
4. Step 4: Simplify right side
   9,947.22x = 81,805,892.53
5. Step 5: Solve for x
   x = 81,805,892.53/9,947.22
6. Step 6: Final answer
   x = 8,223.99