Finding the Fourth Proportional to 23,174.01, 31,980.42 and 13,101.66

Step by Step Solution

1. Step 1: Write the proportion equation
   23,174.01 : 31,980.42 = 13,101.66 : x
2. Step 2: Convert to fraction form
   23,174.01/31,980.42 = 13,101.66/x
3. Step 3: Cross multiply
   23,174.01x = 31,980.42 × 13,101.66
4. Step 4: Simplify right side
   23,174.01x = 418,996,589.50
5. Step 5: Solve for x
   x = 418,996,589.50/23,174.01
6. Step 6: Final answer
   x = 18,080.45