Finding the Fourth Proportional to 23,020.02, 31,768.02 and 12,811.86

Step by Step Solution

1. Step 1: Write the proportion equation
   23,020.02 : 31,768.02 = 12,811.86 : x
2. Step 2: Convert to fraction form
   23,020.02/31,768.02 = 12,811.86/x
3. Step 3: Cross multiply
   23,020.02x = 31,768.02 × 12,811.86
4. Step 4: Simplify right side
   23,020.02x = 407,007,424.72
5. Step 5: Solve for x
   x = 407,007,424.72/23,020.02
6. Step 6: Final answer
   x = 17,680.59