Finding the Fourth Proportional to 23,520.32, 32,458.43 and 12,910.94

Step by Step Solution

1. Step 1: Write the proportion equation
   23,520.32 : 32,458.43 = 12,910.94 : x
2. Step 2: Convert to fraction form
   23,520.32/32,458.43 = 12,910.94/x
3. Step 3: Cross multiply
   23,520.32x = 32,458.43 × 12,910.94
4. Step 4: Simplify right side
   23,520.32x = 419,068,615.38
5. Step 5: Solve for x
   x = 419,068,615.38/23,520.32
6. Step 6: Final answer
   x = 17,817.30