Finding the Fourth Proportional to 278,404.83, 384,199.70 and 151,080.39

Step by Step Solution

1. Step 1: Write the proportion equation
   278,404.83 : 384,199.70 = 151,080.39 : x
2. Step 2: Convert to fraction form
   278,404.83/384,199.70 = 151,080.39/x
3. Step 3: Cross multiply
   278,404.83x = 384,199.70 × 151,080.39
4. Step 4: Simplify right side
   278,404.83x = 58,045,039,758.48
5. Step 5: Solve for x
   x = 58,045,039,758.48/278,404.83
6. Step 6: Final answer
   x = 208,491.50