Finding the Fourth Proportional to 19,020.52, 28,505.31 and 10,696.42

Step by Step Solution

1. Step 1: Write the proportion equation
   19,020.52 : 28,505.31 = 10,696.42 : x
2. Step 2: Convert to fraction form
   19,020.52/28,505.31 = 10,696.42/x
3. Step 3: Cross multiply
   19,020.52x = 28,505.31 × 10,696.42
4. Step 4: Simplify right side
   19,020.52x = 304,904,767.99
5. Step 5: Solve for x
   x = 304,904,767.99/19,020.52
6. Step 6: Final answer
   x = 16,030.31