Finding the Fourth Proportional to 31,410.82, 43,329.63 and 19,904.68

Step by Step Solution

1. Step 1: Write the proportion equation
   31,410.82 : 43,329.63 = 19,904.68 : x
2. Step 2: Convert to fraction form
   31,410.82/43,329.63 = 19,904.68/x
3. Step 3: Cross multiply
   31,410.82x = 43,329.63 × 19,904.68
4. Step 4: Simplify right side
   31,410.82x = 862,462,419.67
5. Step 5: Solve for x
   x = 862,462,419.67/31,410.82
6. Step 6: Final answer
   x = 27,457.49