Finding the Fourth Proportional to 11,967.75, 17,954.06 and 5,042.25

Step by Step Solution

1. Step 1: Write the proportion equation
   11,967.75 : 17,954.06 = 5,042.25 : x
2. Step 2: Convert to fraction form
   11,967.75/17,954.06 = 5,042.25/x
3. Step 3: Cross multiply
   11,967.75x = 17,954.06 × 5,042.25
4. Step 4: Simplify right side
   11,967.75x = 90,528,833.82
5. Step 5: Solve for x
   x = 90,528,833.82/11,967.75
6. Step 6: Final answer
   x = 7,564.40