Finding the Fourth Proportional to 11,847.29, 17,764.99 and 3,947.02

Step by Step Solution

1. Step 1: Write the proportion equation
   11,847.29 : 17,764.99 = 3,947.02 : x
2. Step 2: Convert to fraction form
   11,847.29/17,764.99 = 3,947.02/x
3. Step 3: Cross multiply
   11,847.29x = 17,764.99 × 3,947.02
4. Step 4: Simplify right side
   11,847.29x = 70,118,812.78
5. Step 5: Solve for x
   x = 70,118,812.78/11,847.29
6. Step 6: Final answer
   x = 5,918.55