Finding the Fourth Proportional to 11,113.67, 16,662.30 and 5,263.43

Step by Step Solution

1. Step 1: Write the proportion equation
   11,113.67 : 16,662.30 = 5,263.43 : x
2. Step 2: Convert to fraction form
   11,113.67/16,662.30 = 5,263.43/x
3. Step 3: Cross multiply
   11,113.67x = 16,662.30 × 5,263.43
4. Step 4: Simplify right side
   11,113.67x = 87,700,849.69
5. Step 5: Solve for x
   x = 87,700,849.69/11,113.67
6. Step 6: Final answer
   x = 7,891.26