Finding the Fourth Proportional to 562,883.89, 776,764.60 and 321,162.07

Step by Step Solution

1. Step 1: Write the proportion equation
   562,883.89 : 776,764.60 = 321,162.07 : x
2. Step 2: Convert to fraction form
   562,883.89/776,764.60 = 321,162.07/x
3. Step 3: Cross multiply
   562,883.89x = 776,764.60 × 321,162.07
4. Step 4: Simplify right side
   562,883.89x = 249,467,326,838.72
5. Step 5: Solve for x
   x = 249,467,326,838.72/562,883.89
6. Step 6: Final answer
   x = 443,195.00