Finding the Fourth Proportional to 11,960.67, 17,947.16 and 5,385.32

Step by Step Solution

1. Step 1: Write the proportion equation
   11,960.67 : 17,947.16 = 5,385.32 : x
2. Step 2: Convert to fraction form
   11,960.67/17,947.16 = 5,385.32/x
3. Step 3: Cross multiply
   11,960.67x = 17,947.16 × 5,385.32
4. Step 4: Simplify right side
   11,960.67x = 96,651,199.69
5. Step 5: Solve for x
   x = 96,651,199.69/11,960.67
6. Step 6: Final answer
   x = 8,080.75