Finding the Fourth Proportional to 203,196.76, 280,408.56 and 112,552.43

Step by Step Solution

1. Step 1: Write the proportion equation
   203,196.76 : 280,408.56 = 112,552.43 : x
2. Step 2: Convert to fraction form
   203,196.76/280,408.56 = 112,552.43/x
3. Step 3: Cross multiply
   203,196.76x = 280,408.56 × 112,552.43
4. Step 4: Simplify right side
   203,196.76x = 31,560,663,418.76
5. Step 5: Solve for x
   x = 31,560,663,418.76/203,196.76
6. Step 6: Final answer
   x = 155,320.71