Finding the Fourth Proportional to 31,875.10, 43,984.56 and 18,443.68

Step by Step Solution

1. Step 1: Write the proportion equation
   31,875.10 : 43,984.56 = 18,443.68 : x
2. Step 2: Convert to fraction form
   31,875.10/43,984.56 = 18,443.68/x
3. Step 3: Cross multiply
   31,875.10x = 43,984.56 × 18,443.68
4. Step 4: Simplify right side
   31,875.10x = 811,237,149.58
5. Step 5: Solve for x
   x = 811,237,149.58/31,875.10
6. Step 6: Final answer
   x = 25,450.50