Finding the Fourth Proportional to 73,986.91, 111,016.76 and 45,899.71

Step by Step Solution

1. Step 1: Write the proportion equation
   73,986.91 : 111,016.76 = 45,899.71 : x
2. Step 2: Convert to fraction form
   73,986.91/111,016.76 = 45,899.71/x
3. Step 3: Cross multiply
   73,986.91x = 111,016.76 × 45,899.71
4. Step 4: Simplify right side
   73,986.91x = 5,095,637,089.14
5. Step 5: Solve for x
   x = 5,095,637,089.14/73,986.91
6. Step 6: Final answer
   x = 68,872.14