Finding the Fourth Proportional to 123,266.57, 185,339.99 and 113,523.49

Step by Step Solution

1. Step 1: Write the proportion equation
   123,266.57 : 185,339.99 = 113,523.49 : x
2. Step 2: Convert to fraction form
   123,266.57/185,339.99 = 113,523.49/x
3. Step 3: Cross multiply
   123,266.57x = 185,339.99 × 113,523.49
4. Step 4: Simplify right side
   123,266.57x = 21,040,442,321.82
5. Step 5: Solve for x
   x = 21,040,442,321.82/123,266.57
6. Step 6: Final answer
   x = 170,690.58