Finding the Fourth Proportional to 85,074.72, 127,638.24 and 43,550.88

Step by Step Solution

1. Step 1: Write the proportion equation
   85,074.72 : 127,638.24 = 43,550.88 : x
2. Step 2: Convert to fraction form
   85,074.72/127,638.24 = 43,550.88/x
3. Step 3: Cross multiply
   85,074.72x = 127,638.24 × 43,550.88
4. Step 4: Simplify right side
   85,074.72x = 5,558,757,673.65
5. Step 5: Solve for x
   x = 5,558,757,673.65/85,074.72
6. Step 6: Final answer
   x = 65,339.71