Finding the Fourth Proportional to 31,837.22, 43,932.78 and 18,409.34

Step by Step Solution

1. Step 1: Write the proportion equation
   31,837.22 : 43,932.78 = 18,409.34 : x
2. Step 2: Convert to fraction form
   31,837.22/43,932.78 = 18,409.34/x
3. Step 3: Cross multiply
   31,837.22x = 43,932.78 × 18,409.34
4. Step 4: Simplify right side
   31,837.22x = 808,773,498.28
5. Step 5: Solve for x
   x = 808,773,498.28/31,837.22
6. Step 6: Final answer
   x = 25,403.40