Finding the Fourth Proportional to 16,856.31, 23,261.27 and 9,302.54

Step by Step Solution

1. Step 1: Write the proportion equation
   16,856.31 : 23,261.27 = 9,302.54 : x
2. Step 2: Convert to fraction form
   16,856.31/23,261.27 = 9,302.54/x
3. Step 3: Cross multiply
   16,856.31x = 23,261.27 × 9,302.54
4. Step 4: Simplify right side
   16,856.31x = 216,388,894.63
5. Step 5: Solve for x
   x = 216,388,894.63/16,856.31
6. Step 6: Final answer
   x = 12,837.26