Finding the Fourth Proportional to 31,355.72, 43,268.01 and 18,606.69

Step by Step Solution

1. Step 1: Write the proportion equation
   31,355.72 : 43,268.01 = 18,606.69 : x
2. Step 2: Convert to fraction form
   31,355.72/43,268.01 = 18,606.69/x
3. Step 3: Cross multiply
   31,355.72x = 43,268.01 × 18,606.69
4. Step 4: Simplify right side
   31,355.72x = 805,074,355.95
5. Step 5: Solve for x
   x = 805,074,355.95/31,355.72
6. Step 6: Final answer
   x = 25,675.52