Finding the Fourth Proportional to 562,729.30, 776,585.39 and 308,085.82

Step by Step Solution

1. Step 1: Write the proportion equation
   562,729.30 : 776,585.39 = 308,085.82 : x
2. Step 2: Convert to fraction form
   562,729.30/776,585.39 = 308,085.82/x
3. Step 3: Cross multiply
   562,729.30x = 776,585.39 × 308,085.82
4. Step 4: Simplify right side
   562,729.30x = 239,254,943,196.28
5. Step 5: Solve for x
   x = 239,254,943,196.28/562,729.30
6. Step 6: Final answer
   x = 425,168.81