Finding the Fourth Proportional to 276,492.69, 381,560.73 and 155,635.83

Step by Step Solution

1. Step 1: Write the proportion equation
   276,492.69 : 381,560.73 = 155,635.83 : x
2. Step 2: Convert to fraction form
   276,492.69/381,560.73 = 155,635.83/x
3. Step 3: Cross multiply
   276,492.69x = 381,560.73 × 155,635.83
4. Step 4: Simplify right side
   276,492.69x = 59,384,520,325.32
5. Step 5: Solve for x
   x = 59,384,520,325.32/276,492.69
6. Step 6: Final answer
   x = 214,777.90