Finding the Fourth Proportional to 12,654.90, 17,447.49 and 10,377.89

Step by Step Solution

1. Step 1: Write the proportion equation
   12,654.90 : 17,447.49 = 10,377.89 : x
2. Step 2: Convert to fraction form
   12,654.90/17,447.49 = 10,377.89/x
3. Step 3: Cross multiply
   12,654.90x = 17,447.49 × 10,377.89
4. Step 4: Simplify right side
   12,654.90x = 181,068,044.76
5. Step 5: Solve for x
   x = 181,068,044.76/12,654.90
6. Step 6: Final answer
   x = 14,308.14