Finding the Fourth Proportional to 23,612.94, 32,585.10 and 12,857.51

Step by Step Solution

1. Step 1: Write the proportion equation
   23,612.94 : 32,585.10 = 12,857.51 : x
2. Step 2: Convert to fraction form
   23,612.94/32,585.10 = 12,857.51/x
3. Step 3: Cross multiply
   23,612.94x = 32,585.10 × 12,857.51
4. Step 4: Simplify right side
   23,612.94x = 418,963,290.15
5. Step 5: Solve for x
   x = 418,963,290.15/23,612.94
6. Step 6: Final answer
   x = 17,742.96