Finding the Fourth Proportional to 19,185.48, 28,782.15 and 8,092.17

Step by Step Solution

1. Step 1: Write the proportion equation
   19,185.48 : 28,782.15 = 8,092.17 : x
2. Step 2: Convert to fraction form
   19,185.48/28,782.15 = 8,092.17/x
3. Step 3: Cross multiply
   19,185.48x = 28,782.15 × 8,092.17
4. Step 4: Simplify right side
   19,185.48x = 232,910,050.77
5. Step 5: Solve for x
   x = 232,910,050.77/19,185.48
6. Step 6: Final answer
   x = 12,139.91