Finding the Fourth Proportional to 10,967.67, 16,455.15 and 4,392.09

Step by Step Solution

1. Step 1: Write the proportion equation
   10,967.67 : 16,455.15 = 4,392.09 : x
2. Step 2: Convert to fraction form
   10,967.67/16,455.15 = 4,392.09/x
3. Step 3: Cross multiply
   10,967.67x = 16,455.15 × 4,392.09
4. Step 4: Simplify right side
   10,967.67x = 72,272,499.76
5. Step 5: Solve for x
   x = 72,272,499.76/10,967.67
6. Step 6: Final answer
   x = 6,589.59