Finding the Fourth Proportional to 16,853.31, 23,256.56 and 9,299.79

Step by Step Solution

1. Step 1: Write the proportion equation
   16,853.31 : 23,256.56 = 9,299.79 : x
2. Step 2: Convert to fraction form
   16,853.31/23,256.56 = 9,299.79/x
3. Step 3: Cross multiply
   16,853.31x = 23,256.56 × 9,299.79
4. Step 4: Simplify right side
   16,853.31x = 216,281,077.62
5. Step 5: Solve for x
   x = 216,281,077.62/16,853.31
6. Step 6: Final answer
   x = 12,833.15