Finding the Fourth Proportional to 23,181.32, 31,981.17 and 15,124.46

Step by Step Solution

1. Step 1: Write the proportion equation
   23,181.32 : 31,981.17 = 15,124.46 : x
2. Step 2: Convert to fraction form
   23,181.32/31,981.17 = 15,124.46/x
3. Step 3: Cross multiply
   23,181.32x = 31,981.17 × 15,124.46
4. Step 4: Simplify right side
   23,181.32x = 483,697,766.51
5. Step 5: Solve for x
   x = 483,697,766.51/23,181.32
6. Step 6: Final answer
   x = 20,865.85