Finding the Fourth Proportional to 13,860.84, 19,128.24 and 7,573.62

Step by Step Solution

1. Step 1: Write the proportion equation
   13,860.84 : 19,128.24 = 7,573.62 : x
2. Step 2: Convert to fraction form
   13,860.84/19,128.24 = 7,573.62/x
3. Step 3: Cross multiply
   13,860.84x = 19,128.24 × 7,573.62
4. Step 4: Simplify right side
   13,860.84x = 144,870,021.03
5. Step 5: Solve for x
   x = 144,870,021.03/13,860.84
6. Step 6: Final answer
   x = 10,451.75