Finding the Fourth Proportional to 31,066.23, 42,870.02 and 17,637.24

Step by Step Solution

1. Step 1: Write the proportion equation
   31,066.23 : 42,870.02 = 17,637.24 : x
2. Step 2: Convert to fraction form
   31,066.23/42,870.02 = 17,637.24/x
3. Step 3: Cross multiply
   31,066.23x = 42,870.02 × 17,637.24
4. Step 4: Simplify right side
   31,066.23x = 756,108,743.36
5. Step 5: Solve for x
   x = 756,108,743.36/31,066.23
6. Step 6: Final answer
   x = 24,338.61