Finding the Fourth Proportional to 22,886.59, 31,579.84 and 12,815.46

Step by Step Solution

1. Step 1: Write the proportion equation
   22,886.59 : 31,579.84 = 12,815.46 : x
2. Step 2: Convert to fraction form
   22,886.59/31,579.84 = 12,815.46/x
3. Step 3: Cross multiply
   22,886.59x = 31,579.84 × 12,815.46
4. Step 4: Simplify right side
   22,886.59x = 404,710,176.33
5. Step 5: Solve for x
   x = 404,710,176.33/22,886.59
6. Step 6: Final answer
   x = 17,683.29