Finding the Fourth Proportional to 23,164.85, 31,968.16 and 13,093.72

Step by Step Solution

1. Step 1: Write the proportion equation
   23,164.85 : 31,968.16 = 13,093.72 : x
2. Step 2: Convert to fraction form
   23,164.85/31,968.16 = 13,093.72/x
3. Step 3: Cross multiply
   23,164.85x = 31,968.16 × 13,093.72
4. Step 4: Simplify right side
   23,164.85x = 418,582,023.30
5. Step 5: Solve for x
   x = 418,582,023.30/23,164.85
6. Step 6: Final answer
   x = 18,069.70