Finding the Fourth Proportional to 276,054.36, 380,952.72 and 155,196.18

Step by Step Solution

1. Step 1: Write the proportion equation
   276,054.36 : 380,952.72 = 155,196.18 : x
2. Step 2: Convert to fraction form
   276,054.36/380,952.72 = 155,196.18/x
3. Step 3: Cross multiply
   276,054.36x = 380,952.72 × 155,196.18
4. Step 4: Simplify right side
   276,054.36x = 59,122,406,904.61
5. Step 5: Solve for x
   x = 59,122,406,904.61/276,054.36
6. Step 6: Final answer
   x = 214,169.44