Finding the Fourth Proportional to 23,173.06, 31,980.46 and 13,101.60

Step by Step Solution

1. Step 1: Write the proportion equation
   23,173.06 : 31,980.46 = 13,101.60 : x
2. Step 2: Convert to fraction form
   23,173.06/31,980.46 = 13,101.60/x
3. Step 3: Cross multiply
   23,173.06x = 31,980.46 × 13,101.60
4. Step 4: Simplify right side
   23,173.06x = 418,995,034.83
5. Step 5: Solve for x
   x = 418,995,034.83/23,173.06
6. Step 6: Final answer
   x = 18,081.13