Finding the Fourth Proportional to 278,499.74, 384,329.31 and 151,175.33

Step by Step Solution

1. Step 1: Write the proportion equation
   278,499.74 : 384,329.31 = 151,175.33 : x
2. Step 2: Convert to fraction form
   278,499.74/384,329.31 = 151,175.33/x
3. Step 3: Cross multiply
   278,499.74x = 384,329.31 × 151,175.33
4. Step 4: Simplify right side
   278,499.74x = 58,101,109,220.60
5. Step 5: Solve for x
   x = 58,101,109,220.60/278,499.74
6. Step 6: Final answer
   x = 208,621.78