Finding the Fourth Proportional to 11,971.72, 17,965.32 and 5,046.28

Step by Step Solution

1. Step 1: Write the proportion equation
   11,971.72 : 17,965.32 = 5,046.28 : x
2. Step 2: Convert to fraction form
   11,971.72/17,965.32 = 5,046.28/x
3. Step 3: Cross multiply
   11,971.72x = 17,965.32 × 5,046.28
4. Step 4: Simplify right side
   11,971.72x = 90,658,035.01
5. Step 5: Solve for x
   x = 90,658,035.01/11,971.72
6. Step 6: Final answer
   x = 7,572.68