Finding the Fourth Proportional to 200,481, 276,663.78 and 111,057

Step by Step Solution

1. Step 1: Write the proportion equation
   200,481 : 276,663.78 = 111,057 : x
2. Step 2: Convert to fraction form
   200,481/276,663.78 = 111,057/x
3. Step 3: Cross multiply
   200,481x = 276,663.78 × 111,057
4. Step 4: Simplify right side
   200,481x = 30,725,449,415.46
5. Step 5: Solve for x
   x = 30,725,449,415.46/200,481
6. Step 6: Final answer
   x = 153,258.66