Finding the Fourth Proportional to 19,910.82, 29,857.02 and 7,427.50

Step by Step Solution

1. Step 1: Write the proportion equation
   19,910.82 : 29,857.02 = 7,427.50 : x
2. Step 2: Convert to fraction form
   19,910.82/29,857.02 = 7,427.50/x
3. Step 3: Cross multiply
   19,910.82x = 29,857.02 × 7,427.50
4. Step 4: Simplify right side
   19,910.82x = 221,763,016.05
5. Step 5: Solve for x
   x = 221,763,016.05/19,910.82
6. Step 6: Final answer
   x = 11,137.81