Finding the Fourth Proportional to 31,788.31, 43,869.86 and 18,362.02

Step by Step Solution

1. Step 1: Write the proportion equation
   31,788.31 : 43,869.86 = 18,362.02 : x
2. Step 2: Convert to fraction form
   31,788.31/43,869.86 = 18,362.02/x
3. Step 3: Cross multiply
   31,788.31x = 43,869.86 × 18,362.02
4. Step 4: Simplify right side
   31,788.31x = 805,539,246.72
5. Step 5: Solve for x
   x = 805,539,246.72/31,788.31
6. Step 6: Final answer
   x = 25,340.74