Finding the Fourth Proportional to 23,055.27, 31,816.86 and 12,984.09

Step by Step Solution

1. Step 1: Write the proportion equation
   23,055.27 : 31,816.86 = 12,984.09 : x
2. Step 2: Convert to fraction form
   23,055.27/31,816.86 = 12,984.09/x
3. Step 3: Cross multiply
   23,055.27x = 31,816.86 × 12,984.09
4. Step 4: Simplify right side
   23,055.27x = 413,112,973.76
5. Step 5: Solve for x
   x = 413,112,973.76/23,055.27
6. Step 6: Final answer
   x = 17,918.38