Finding the Fourth Proportional to 276,606.50, 381,685.37 and 155,744.67

Step by Step Solution

1. Step 1: Write the proportion equation
   276,606.50 : 381,685.37 = 155,744.67 : x
2. Step 2: Convert to fraction form
   276,606.50/381,685.37 = 155,744.67/x
3. Step 3: Cross multiply
   276,606.50x = 381,685.37 × 155,744.67
4. Step 4: Simplify right side
   276,606.50x = 59,445,462,647.07
5. Step 5: Solve for x
   x = 59,445,462,647.07/276,606.50
6. Step 6: Final answer
   x = 214,909.86