Finding the Fourth Proportional to 405,582.72, 608,459.76 and 152,857.88

Step by Step Solution

1. Step 1: Write the proportion equation
   405,582.72 : 608,459.76 = 152,857.88 : x
2. Step 2: Convert to fraction form
   405,582.72/608,459.76 = 152,857.88/x
3. Step 3: Cross multiply
   405,582.72x = 608,459.76 × 152,857.88
4. Step 4: Simplify right side
   405,582.72x = 93,007,868,978.91
5. Step 5: Solve for x
   x = 93,007,868,978.91/405,582.72
6. Step 6: Final answer
   x = 229,319.11