Finding the Fourth Proportional to 278,387.72, 384,176.06 and 151,063.30

Step by Step Solution

1. Step 1: Write the proportion equation
   278,387.72 : 384,176.06 = 151,063.30 : x
2. Step 2: Convert to fraction form
   278,387.72/384,176.06 = 151,063.30/x
3. Step 3: Cross multiply
   278,387.72x = 384,176.06 × 151,063.30
4. Step 4: Simplify right side
   278,387.72x = 58,034,903,404.60
5. Step 5: Solve for x
   x = 58,034,903,404.60/278,387.72
6. Step 6: Final answer
   x = 208,467.90