Finding the Fourth Proportional to 278,760.83, 384,690.40 and 151,436.52

Step by Step Solution

1. Step 1: Write the proportion equation
   278,760.83 : 384,690.40 = 151,436.52 : x
2. Step 2: Convert to fraction form
   278,760.83/384,690.40 = 151,436.52/x
3. Step 3: Cross multiply
   278,760.83x = 384,690.40 × 151,436.52
4. Step 4: Simplify right side
   278,760.83x = 58,256,175,074.82
5. Step 5: Solve for x
   x = 58,256,175,074.82/278,760.83
6. Step 6: Final answer
   x = 208,982.65