Finding the Fourth Proportional to 276,526.30, 381,617.85 and 155,667.82

Step by Step Solution

1. Step 1: Write the proportion equation
   276,526.30 : 381,617.85 = 155,667.82 : x
2. Step 2: Convert to fraction form
   276,526.30/381,617.85 = 155,667.82/x
3. Step 3: Cross multiply
   276,526.30x = 381,617.85 × 155,667.82
4. Step 4: Simplify right side
   276,526.30x = 59,405,618,782.59
5. Step 5: Solve for x
   x = 59,405,618,782.59/276,526.30
6. Step 6: Final answer
   x = 214,828.10