Finding the Fourth Proportional to 10,890.15, 16,331.73 and 3,492.82

Step by Step Solution

1. Step 1: Write the proportion equation
   10,890.15 : 16,331.73 = 3,492.82 : x
2. Step 2: Convert to fraction form
   10,890.15/16,331.73 = 3,492.82/x
3. Step 3: Cross multiply
   10,890.15x = 16,331.73 × 3,492.82
4. Step 4: Simplify right side
   10,890.15x = 57,043,800.50
5. Step 5: Solve for x
   x = 57,043,800.50/10,890.15
6. Step 6: Final answer
   x = 5,238.11