Finding the Fourth Proportional to 73,986.63, 111,016.40 and 45,899.48

Step by Step Solution

1. Step 1: Write the proportion equation
   73,986.63 : 111,016.40 = 45,899.48 : x
2. Step 2: Convert to fraction form
   73,986.63/111,016.40 = 45,899.48/x
3. Step 3: Cross multiply
   73,986.63x = 111,016.40 × 45,899.48
4. Step 4: Simplify right side
   73,986.63x = 5,095,594,246.89
5. Step 5: Solve for x
   x = 5,095,594,246.89/73,986.63
6. Step 6: Final answer
   x = 68,871.83