Finding the Fourth Proportional to 278,410.27, 384,206.42 and 151,085.86

Step by Step Solution

1. Step 1: Write the proportion equation
   278,410.27 : 384,206.42 = 151,085.86 : x
2. Step 2: Convert to fraction form
   278,410.27/384,206.42 = 151,085.86/x
3. Step 3: Cross multiply
   278,410.27x = 384,206.42 × 151,085.86
4. Step 4: Simplify right side
   278,410.27x = 58,048,157,383.22
5. Step 5: Solve for x
   x = 58,048,157,383.22/278,410.27
6. Step 6: Final answer
   x = 208,498.62