Finding the Fourth Proportional to 13,174.56, 19,739.52 and 7,969.50

Step by Step Solution

1. Step 1: Write the proportion equation
   13,174.56 : 19,739.52 = 7,969.50 : x
2. Step 2: Convert to fraction form
   13,174.56/19,739.52 = 7,969.50/x
3. Step 3: Cross multiply
   13,174.56x = 19,739.52 × 7,969.50
4. Step 4: Simplify right side
   13,174.56x = 157,314,104.64
5. Step 5: Solve for x
   x = 157,314,104.64/13,174.56
6. Step 6: Final answer
   x = 11,940.75