Finding the Fourth Proportional to 23,525.40, 32,465.42 and 12,916

Step by Step Solution

1. Step 1: Write the proportion equation
   23,525.40 : 32,465.42 = 12,916 : x
2. Step 2: Convert to fraction form
   23,525.40/32,465.42 = 12,916/x
3. Step 3: Cross multiply
   23,525.40x = 32,465.42 × 12,916
4. Step 4: Simplify right side
   23,525.40x = 419,323,364.72
5. Step 5: Solve for x
   x = 419,323,364.72/23,525.40
6. Step 6: Final answer
   x = 17,824.28