Finding the Fourth Proportional to 31,419.36, 43,361.28 and 17,994.96

Step by Step Solution

1. Step 1: Write the proportion equation
   31,419.36 : 43,361.28 = 17,994.96 : x
2. Step 2: Convert to fraction form
   31,419.36/43,361.28 = 17,994.96/x
3. Step 3: Cross multiply
   31,419.36x = 43,361.28 × 17,994.96
4. Step 4: Simplify right side
   31,419.36x = 780,284,499.15
5. Step 5: Solve for x
   x = 780,284,499.15/31,419.36
6. Step 6: Final answer
   x = 24,834.51