Finding the Fourth Proportional to 278,438.41, 384,234.72 and 151,111.27

Step by Step Solution

1. Step 1: Write the proportion equation
   278,438.41 : 384,234.72 = 151,111.27 : x
2. Step 2: Convert to fraction form
   278,438.41/384,234.72 = 151,111.27/x
3. Step 3: Cross multiply
   278,438.41x = 384,234.72 × 151,111.27
4. Step 4: Simplify right side
   278,438.41x = 58,062,194,596.12
5. Step 5: Solve for x
   x = 58,062,194,596.12/278,438.41
6. Step 6: Final answer
   x = 208,527.97