Finding the Fourth Proportional to 10,994.82, 16,495.88 and 7,311.55

Step by Step Solution

1. Step 1: Write the proportion equation
   10,994.82 : 16,495.88 = 7,311.55 : x
2. Step 2: Convert to fraction form
   10,994.82/16,495.88 = 7,311.55/x
3. Step 3: Cross multiply
   10,994.82x = 16,495.88 × 7,311.55
4. Step 4: Simplify right side
   10,994.82x = 120,610,451.41
5. Step 5: Solve for x
   x = 120,610,451.41/10,994.82
6. Step 6: Final answer
   x = 10,969.75