Finding the Fourth Proportional to 81,084.84, 111,898.98 and 45,273.64

Step by Step Solution

1. Step 1: Write the proportion equation
   81,084.84 : 111,898.98 = 45,273.64 : x
2. Step 2: Convert to fraction form
   81,084.84/111,898.98 = 45,273.64/x
3. Step 3: Cross multiply
   81,084.84x = 111,898.98 × 45,273.64
4. Step 4: Simplify right side
   81,084.84x = 5,066,074,136.89
5. Step 5: Solve for x
   x = 5,066,074,136.89/81,084.84
6. Step 6: Final answer
   x = 62,478.68