Finding the Fourth Proportional to 19,657.89, 27,127.89 and 10,705.39

Step by Step Solution

1. Step 1: Write the proportion equation
   19,657.89 : 27,127.89 = 10,705.39 : x
2. Step 2: Convert to fraction form
   19,657.89/27,127.89 = 10,705.39/x
3. Step 3: Cross multiply
   19,657.89x = 27,127.89 × 10,705.39
4. Step 4: Simplify right side
   19,657.89x = 290,414,642.33
5. Step 5: Solve for x
   x = 290,414,642.33/19,657.89
6. Step 6: Final answer
   x = 14,773.44