Finding the Fourth Proportional to 278,389.34, 384,178.31 and 151,064.93

Step by Step Solution

1. Step 1: Write the proportion equation
   278,389.34 : 384,178.31 = 151,064.93 : x
2. Step 2: Convert to fraction form
   278,389.34/384,178.31 = 151,064.93/x
3. Step 3: Cross multiply
   278,389.34x = 384,178.31 × 151,064.93
4. Step 4: Simplify right side
   278,389.34x = 58,035,870,845.78
5. Step 5: Solve for x
   x = 58,035,870,845.78/278,389.34
6. Step 6: Final answer
   x = 208,470.16