Finding the Fourth Proportional to 563,100.96, 777,079.52 and 308,456.32

Step by Step Solution

1. Step 1: Write the proportion equation
   563,100.96 : 777,079.52 = 308,456.32 : x
2. Step 2: Convert to fraction form
   563,100.96/777,079.52 = 308,456.32/x
3. Step 3: Cross multiply
   563,100.96x = 777,079.52 × 308,456.32
4. Step 4: Simplify right side
   563,100.96x = 239,695,089,086.57
5. Step 5: Solve for x
   x = 239,695,089,086.57/563,100.96
6. Step 6: Final answer
   x = 425,669.83