Finding the Fourth Proportional to 39,881.89, 54,985.89 and 32,685.31

Step by Step Solution

1. Step 1: Write the proportion equation
   39,881.89 : 54,985.89 = 32,685.31 : x
2. Step 2: Convert to fraction form
   39,881.89/54,985.89 = 32,685.31/x
3. Step 3: Cross multiply
   39,881.89x = 54,985.89 × 32,685.31
4. Step 4: Simplify right side
   39,881.89x = 1,797,230,860.28
5. Step 5: Solve for x
   x = 1,797,230,860.28/39,881.89
6. Step 6: Final answer
   x = 45,063.83