Finding the Fourth Proportional to 19,538.82, 29,302.25 and 7,057.31

Step by Step Solution

1. Step 1: Write the proportion equation
   19,538.82 : 29,302.25 = 7,057.31 : x
2. Step 2: Convert to fraction form
   19,538.82/29,302.25 = 7,057.31/x
3. Step 3: Cross multiply
   19,538.82x = 29,302.25 × 7,057.31
4. Step 4: Simplify right side
   19,538.82x = 206,794,880.15
5. Step 5: Solve for x
   x = 206,794,880.15/19,538.82
6. Step 6: Final answer
   x = 10,583.80