Finding the Fourth Proportional to 19,958.82, 29,938.32 and 5,166.69

Step by Step Solution

1. Step 1: Write the proportion equation
   19,958.82 : 29,938.32 = 5,166.69 : x
2. Step 2: Convert to fraction form
   19,958.82/29,938.32 = 5,166.69/x
3. Step 3: Cross multiply
   19,958.82x = 29,938.32 × 5,166.69
4. Step 4: Simplify right side
   19,958.82x = 154,682,018.56
5. Step 5: Solve for x
   x = 154,682,018.56/19,958.82
6. Step 6: Final answer
   x = 7,750.06