Finding the Fourth Proportional to 277,578.18, 383,054.52 and 156,724.56

Step by Step Solution

1. Step 1: Write the proportion equation
   277,578.18 : 383,054.52 = 156,724.56 : x
2. Step 2: Convert to fraction form
   277,578.18/383,054.52 = 156,724.56/x
3. Step 3: Cross multiply
   277,578.18x = 383,054.52 × 156,724.56
4. Step 4: Simplify right side
   277,578.18x = 60,034,051,690.73
5. Step 5: Solve for x
   x = 60,034,051,690.73/277,578.18
6. Step 6: Final answer
   x = 216,277.99