Finding the Fourth Proportional to 10,968.21, 16,443.68 and 3,947.13

Step by Step Solution

1. Step 1: Write the proportion equation
   10,968.21 : 16,443.68 = 3,947.13 : x
2. Step 2: Convert to fraction form
   10,968.21/16,443.68 = 3,947.13/x
3. Step 3: Cross multiply
   10,968.21x = 16,443.68 × 3,947.13
4. Step 4: Simplify right side
   10,968.21x = 64,905,322.90
5. Step 5: Solve for x
   x = 64,905,322.90/10,968.21
6. Step 6: Final answer
   x = 5,917.59