Finding the Fourth Proportional to 278,390.10, 384,179.37 and 151,065.69

Step by Step Solution

1. Step 1: Write the proportion equation
   278,390.10 : 384,179.37 = 151,065.69 : x
2. Step 2: Convert to fraction form
   278,390.10/384,179.37 = 151,065.69/x
3. Step 3: Cross multiply
   278,390.10x = 384,179.37 × 151,065.69
4. Step 4: Simplify right side
   278,390.10x = 58,036,321,612.82
5. Step 5: Solve for x
   x = 58,036,321,612.82/278,390.10
6. Step 6: Final answer
   x = 208,471.21