Finding the Fourth Proportional to 19,005, 26,227.71 and 10,621.50

Step by Step Solution

1. Step 1: Write the proportion equation
   19,005 : 26,227.71 = 10,621.50 : x
2. Step 2: Convert to fraction form
   19,005/26,227.71 = 10,621.50/x
3. Step 3: Cross multiply
   19,005x = 26,227.71 × 10,621.50
4. Step 4: Simplify right side
   19,005x = 278,577,621.77
5. Step 5: Solve for x
   x = 278,577,621.77/19,005
6. Step 6: Final answer
   x = 14,658.12