Finding the Fourth Proportional to 81,058.48, 111,849.56 and 45,243.88

Step by Step Solution

1. Step 1: Write the proportion equation
   81,058.48 : 111,849.56 = 45,243.88 : x
2. Step 2: Convert to fraction form
   81,058.48/111,849.56 = 45,243.88/x
3. Step 3: Cross multiply
   81,058.48x = 111,849.56 × 45,243.88
4. Step 4: Simplify right side
   81,058.48x = 5,060,508,070.69
5. Step 5: Solve for x
   x = 5,060,508,070.69/81,058.48
6. Step 6: Final answer
   x = 62,430.34