Finding the Fourth Proportional to 111,185.82, 166,786.17 and 39,130.17

Step by Step Solution

1. Step 1: Write the proportion equation
   111,185.82 : 166,786.17 = 39,130.17 : x
2. Step 2: Convert to fraction form
   111,185.82/166,786.17 = 39,130.17/x
3. Step 3: Cross multiply
   111,185.82x = 166,786.17 × 39,130.17
4. Step 4: Simplify right side
   111,185.82x = 6,526,371,185.75
5. Step 5: Solve for x
   x = 6,526,371,185.75/111,185.82
6. Step 6: Final answer
   x = 58,697.87