Finding the Fourth Proportional to 23,003.67, 31,736.07 and 12,929.80

Step by Step Solution

1. Step 1: Write the proportion equation
   23,003.67 : 31,736.07 = 12,929.80 : x
2. Step 2: Convert to fraction form
   23,003.67/31,736.07 = 12,929.80/x
3. Step 3: Cross multiply
   23,003.67x = 31,736.07 × 12,929.80
4. Step 4: Simplify right side
   23,003.67x = 410,341,037.89
5. Step 5: Solve for x
   x = 410,341,037.89/23,003.67
6. Step 6: Final answer
   x = 17,838.07