Finding the Fourth Proportional to 23,102.35, 31,881.72 and 13,549.57

Step by Step Solution

1. Step 1: Write the proportion equation
   23,102.35 : 31,881.72 = 13,549.57 : x
2. Step 2: Convert to fraction form
   23,102.35/31,881.72 = 13,549.57/x
3. Step 3: Cross multiply
   23,102.35x = 31,881.72 × 13,549.57
4. Step 4: Simplify right side
   23,102.35x = 431,983,596.86
5. Step 5: Solve for x
   x = 431,983,596.86/23,102.35
6. Step 6: Final answer
   x = 18,698.69