Finding the Fourth Proportional to 314,728.37, 472,504.10 and 186,878.10

Step by Step Solution

1. Step 1: Write the proportion equation
   314,728.37 : 472,504.10 = 186,878.10 : x
2. Step 2: Convert to fraction form
   314,728.37/472,504.10 = 186,878.10/x
3. Step 3: Cross multiply
   314,728.37x = 472,504.10 × 186,878.10
4. Step 4: Simplify right side
   314,728.37x = 88,300,667,515.82
5. Step 5: Solve for x
   x = 88,300,667,515.82/314,728.37
6. Step 6: Final answer
   x = 280,561.52