Finding the Fourth Proportional to 31,812.42, 43,899.81 and 17,664.42

Step by Step Solution

1. Step 1: Write the proportion equation
   31,812.42 : 43,899.81 = 17,664.42 : x
2. Step 2: Convert to fraction form
   31,812.42/43,899.81 = 17,664.42/x
3. Step 3: Cross multiply
   31,812.42x = 43,899.81 × 17,664.42
4. Step 4: Simplify right side
   31,812.42x = 775,464,681.76
5. Step 5: Solve for x
   x = 775,464,681.76/31,812.42
6. Step 6: Final answer
   x = 24,376.16