Finding the Fourth Proportional to 19,606.82, 29,393.69 and 8,505.15

Step by Step Solution

1. Step 1: Write the proportion equation
   19,606.82 : 29,393.69 = 8,505.15 : x
2. Step 2: Convert to fraction form
   19,606.82/29,393.69 = 8,505.15/x
3. Step 3: Cross multiply
   19,606.82x = 29,393.69 × 8,505.15
4. Step 4: Simplify right side
   19,606.82x = 249,997,595.54
5. Step 5: Solve for x
   x = 249,997,595.54/19,606.82
6. Step 6: Final answer
   x = 12,750.54