Finding the Fourth Proportional to 23,033.49, 31,787.83 and 12,962.90

Step by Step Solution

1. Step 1: Write the proportion equation
   23,033.49 : 31,787.83 = 12,962.90 : x
2. Step 2: Convert to fraction form
   23,033.49/31,787.83 = 12,962.90/x
3. Step 3: Cross multiply
   23,033.49x = 31,787.83 × 12,962.90
4. Step 4: Simplify right side
   23,033.49x = 412,062,461.51
5. Step 5: Solve for x
   x = 412,062,461.51/23,033.49
6. Step 6: Final answer
   x = 17,889.71