Finding the Fourth Proportional to 278,499.25, 384,329.64 and 151,174.81

Step by Step Solution

1. Step 1: Write the proportion equation
   278,499.25 : 384,329.64 = 151,174.81 : x
2. Step 2: Convert to fraction form
   278,499.25/384,329.64 = 151,174.81/x
3. Step 3: Cross multiply
   278,499.25x = 384,329.64 × 151,174.81
4. Step 4: Simplify right side
   278,499.25x = 58,100,960,304.37
5. Step 5: Solve for x
   x = 58,100,960,304.37/278,499.25
6. Step 6: Final answer
   x = 208,621.60