Finding the Fourth Proportional to 10,994.57, 16,495.50 and 7,311.30

Step by Step Solution

1. Step 1: Write the proportion equation
   10,994.57 : 16,495.50 = 7,311.30 : x
2. Step 2: Convert to fraction form
   10,994.57/16,495.50 = 7,311.30/x
3. Step 3: Cross multiply
   10,994.57x = 16,495.50 × 7,311.30
4. Step 4: Simplify right side
   10,994.57x = 120,603,549.15
5. Step 5: Solve for x
   x = 120,603,549.15/10,994.57
6. Step 6: Final answer
   x = 10,969.37