Finding the Fourth Proportional to 443,726.72, 665,590.56 and 111,302.72

Step by Step Solution

1. Step 1: Write the proportion equation
   443,726.72 : 665,590.56 = 111,302.72 : x
2. Step 2: Convert to fraction form
   443,726.72/665,590.56 = 111,302.72/x
3. Step 3: Cross multiply
   443,726.72x = 665,590.56 × 111,302.72
4. Step 4: Simplify right side
   443,726.72x = 74,082,039,734.32
5. Step 5: Solve for x
   x = 74,082,039,734.32/443,726.72
6. Step 6: Final answer
   x = 166,954.20