Finding the Fourth Proportional to 23,085.96, 31,856.72 and 13,016.88

Step by Step Solution

1. Step 1: Write the proportion equation
   23,085.96 : 31,856.72 = 13,016.88 : x
2. Step 2: Convert to fraction form
   23,085.96/31,856.72 = 13,016.88/x
3. Step 3: Cross multiply
   23,085.96x = 31,856.72 × 13,016.88
4. Step 4: Simplify right side
   23,085.96x = 414,674,983.36
5. Step 5: Solve for x
   x = 414,674,983.36/23,085.96
6. Step 6: Final answer
   x = 17,962.21