Finding the Fourth Proportional to 19,061.49, 28,601.99 and 9,077.54

Step by Step Solution

1. Step 1: Write the proportion equation
   19,061.49 : 28,601.99 = 9,077.54 : x
2. Step 2: Convert to fraction form
   19,061.49/28,601.99 = 9,077.54/x
3. Step 3: Cross multiply
   19,061.49x = 28,601.99 × 9,077.54
4. Step 4: Simplify right side
   19,061.49x = 259,635,519.91
5. Step 5: Solve for x
   x = 259,635,519.91/19,061.49
6. Step 6: Final answer
   x = 13,620.95