Finding the Fourth Proportional to 80,663.72, 111,299.62 and 47,123.24

Step by Step Solution

1. Step 1: Write the proportion equation
   80,663.72 : 111,299.62 = 47,123.24 : x
2. Step 2: Convert to fraction form
   80,663.72/111,299.62 = 47,123.24/x
3. Step 3: Cross multiply
   80,663.72x = 111,299.62 × 47,123.24
4. Step 4: Simplify right side
   80,663.72x = 5,244,798,705.17
5. Step 5: Solve for x
   x = 5,244,798,705.17/80,663.72
6. Step 6: Final answer
   x = 65,020.54