Finding the Fourth Proportional to 38,901.89, 53,685.31 and 22,986.31

Step by Step Solution

1. Step 1: Write the proportion equation
   38,901.89 : 53,685.31 = 22,986.31 : x
2. Step 2: Convert to fraction form
   38,901.89/53,685.31 = 22,986.31/x
3. Step 3: Cross multiply
   38,901.89x = 53,685.31 × 22,986.31
4. Step 4: Simplify right side
   38,901.89x = 1,234,026,986.43
5. Step 5: Solve for x
   x = 1,234,026,986.43/38,901.89
6. Step 6: Final answer
   x = 31,721.52