Finding the Fourth Proportional to 19,139, 26,414.30 and 10,755.50

Step by Step Solution

1. Step 1: Write the proportion equation
   19,139 : 26,414.30 = 10,755.50 : x
2. Step 2: Convert to fraction form
   19,139/26,414.30 = 10,755.50/x
3. Step 3: Cross multiply
   19,139x = 26,414.30 × 10,755.50
4. Step 4: Simplify right side
   19,139x = 284,099,003.65
5. Step 5: Solve for x
   x = 284,099,003.65/19,139
6. Step 6: Final answer
   x = 14,843.98