Finding the Fourth Proportional to 562,314.96, 776,005.83 and 307,671.57

Step by Step Solution

1. Step 1: Write the proportion equation
   562,314.96 : 776,005.83 = 307,671.57 : x
2. Step 2: Convert to fraction form
   562,314.96/776,005.83 = 307,671.57/x
3. Step 3: Cross multiply
   562,314.96x = 776,005.83 × 307,671.57
4. Step 4: Simplify right side
   562,314.96x = 238,754,932,045.25
5. Step 5: Solve for x
   x = 238,754,932,045.25/562,314.96
6. Step 6: Final answer
   x = 424,592.89