Finding the Fourth Proportional to 81,033.72, 111,832.14 and 45,230.72

Step by Step Solution

1. Step 1: Write the proportion equation
   81,033.72 : 111,832.14 = 45,230.72 : x
2. Step 2: Convert to fraction form
   81,033.72/111,832.14 = 45,230.72/x
3. Step 3: Cross multiply
   81,033.72x = 111,832.14 × 45,230.72
4. Step 4: Simplify right side
   81,033.72x = 5,058,248,211.34
5. Step 5: Solve for x
   x = 5,058,248,211.34/81,033.72
6. Step 6: Final answer
   x = 62,421.52