Finding the Fourth Proportional to 23,043.77, 31,800.22 and 12,972.33

Step by Step Solution

1. Step 1: Write the proportion equation
   23,043.77 : 31,800.22 = 12,972.33 : x
2. Step 2: Convert to fraction form
   23,043.77/31,800.22 = 12,972.33/x
3. Step 3: Cross multiply
   23,043.77x = 31,800.22 × 12,972.33
4. Step 4: Simplify right side
   23,043.77x = 412,522,915.48
5. Step 5: Solve for x
   x = 412,522,915.48/23,043.77
6. Step 6: Final answer
   x = 17,901.72