Finding the Fourth Proportional to 405,580.72, 608,456.74 and 152,855.86

Step by Step Solution

1. Step 1: Write the proportion equation
   405,580.72 : 608,456.74 = 152,855.86 : x
2. Step 2: Convert to fraction form
   405,580.72/608,456.74 = 152,855.86/x
3. Step 3: Cross multiply
   405,580.72x = 608,456.74 × 152,855.86
4. Step 4: Simplify right side
   405,580.72x = 93,006,178,265.50
5. Step 5: Solve for x
   x = 93,006,178,265.50/405,580.72
6. Step 6: Final answer
   x = 229,316.07