Finding the Fourth Proportional to 200,745, 277,028.10 and 111,321

Step by Step Solution

1. Step 1: Write the proportion equation
   200,745 : 277,028.10 = 111,321 : x
2. Step 2: Convert to fraction form
   200,745/277,028.10 = 111,321/x
3. Step 3: Cross multiply
   200,745x = 277,028.10 × 111,321
4. Step 4: Simplify right side
   200,745x = 30,839,045,120.10
5. Step 5: Solve for x
   x = 30,839,045,120.10/200,745
6. Step 6: Final answer
   x = 153,622.98