Finding the Fourth Proportional to 14,077.89, 19,427.31 and 8,488.89

Step by Step Solution

1. Step 1: Write the proportion equation
   14,077.89 : 19,427.31 = 8,488.89 : x
2. Step 2: Convert to fraction form
   14,077.89/19,427.31 = 8,488.89/x
3. Step 3: Cross multiply
   14,077.89x = 19,427.31 × 8,488.89
4. Step 4: Simplify right side
   14,077.89x = 164,916,297.59
5. Step 5: Solve for x
   x = 164,916,297.59/14,077.89
6. Step 6: Final answer
   x = 11,714.56