Finding the Fourth Proportional to 562,856.32, 776,748 and 304,738.89

Step by Step Solution

1. Step 1: Write the proportion equation
   562,856.32 : 776,748 = 304,738.89 : x
2. Step 2: Convert to fraction form
   562,856.32/776,748 = 304,738.89/x
3. Step 3: Cross multiply
   562,856.32x = 776,748 × 304,738.89
4. Step 4: Simplify right side
   562,856.32x = 236,705,323,329.72
5. Step 5: Solve for x
   x = 236,705,323,329.72/562,856.32
6. Step 6: Final answer
   x = 420,543.07