Finding the Fourth Proportional to 23,524.96, 32,465.28 and 12,915.40

Step by Step Solution

1. Step 1: Write the proportion equation
   23,524.96 : 32,465.28 = 12,915.40 : x
2. Step 2: Convert to fraction form
   23,524.96/32,465.28 = 12,915.40/x
3. Step 3: Cross multiply
   23,524.96x = 32,465.28 × 12,915.40
4. Step 4: Simplify right side
   23,524.96x = 419,302,077.31
5. Step 5: Solve for x
   x = 419,302,077.31/23,524.96
6. Step 6: Final answer
   x = 17,823.71