Finding the Fourth Proportional to 31,666.16, 43,697.49 and 17,518.16

Step by Step Solution

1. Step 1: Write the proportion equation
   31,666.16 : 43,697.49 = 17,518.16 : x
2. Step 2: Convert to fraction form
   31,666.16/43,697.49 = 17,518.16/x
3. Step 3: Cross multiply
   31,666.16x = 43,697.49 × 17,518.16
4. Step 4: Simplify right side
   31,666.16x = 765,499,621.42
5. Step 5: Solve for x
   x = 765,499,621.42/31,666.16
6. Step 6: Final answer
   x = 24,174.06