Finding the Fourth Proportional to 57,707.33, 86,552.33 and 18,259.31

Step by Step Solution

1. Step 1: Write the proportion equation
   57,707.33 : 86,552.33 = 18,259.31 : x
2. Step 2: Convert to fraction form
   57,707.33/86,552.33 = 18,259.31/x
3. Step 3: Cross multiply
   57,707.33x = 86,552.33 × 18,259.31
4. Step 4: Simplify right side
   57,707.33x = 1,580,385,949.78
5. Step 5: Solve for x
   x = 1,580,385,949.78/57,707.33
6. Step 6: Final answer
   x = 27,386.23