Finding the Fourth Proportional to 300,859.52, 450,814.56 and 111,058.72

Step by Step Solution

1. Step 1: Write the proportion equation
   300,859.52 : 450,814.56 = 111,058.72 : x
2. Step 2: Convert to fraction form
   300,859.52/450,814.56 = 111,058.72/x
3. Step 3: Cross multiply
   300,859.52x = 450,814.56 × 111,058.72
4. Step 4: Simplify right side
   300,859.52x = 50,066,887,990.96
5. Step 5: Solve for x
   x = 50,066,887,990.96/300,859.52
6. Step 6: Final answer
   x = 166,412.84