Finding the Fourth Proportional to 31,647.71, 43,677.36 and 23,145.75

Step by Step Solution

1. Step 1: Write the proportion equation
   31,647.71 : 43,677.36 = 23,145.75 : x
2. Step 2: Convert to fraction form
   31,647.71/43,677.36 = 23,145.75/x
3. Step 3: Cross multiply
   31,647.71x = 43,677.36 × 23,145.75
4. Step 4: Simplify right side
   31,647.71x = 1,010,945,036.83
5. Step 5: Solve for x
   x = 1,010,945,036.83/31,647.71
6. Step 6: Final answer
   x = 31,943.71