Finding the Fourth Proportional to 10,954.98, 15,112.71 and 7,969.50

Step by Step Solution

1. Step 1: Write the proportion equation
   10,954.98 : 15,112.71 = 7,969.50 : x
2. Step 2: Convert to fraction form
   10,954.98/15,112.71 = 7,969.50/x
3. Step 3: Cross multiply
   10,954.98x = 15,112.71 × 7,969.50
4. Step 4: Simplify right side
   10,954.98x = 120,440,742.35
5. Step 5: Solve for x
   x = 120,440,742.35/10,954.98
6. Step 6: Final answer
   x = 10,994.15