Finding the Fourth Proportional to 451,435.55, 622,967.56 and 247,479.50

Step by Step Solution

1. Step 1: Write the proportion equation
   451,435.55 : 622,967.56 = 247,479.50 : x
2. Step 2: Convert to fraction form
   451,435.55/622,967.56 = 247,479.50/x
3. Step 3: Cross multiply
   451,435.55x = 622,967.56 × 247,479.50
4. Step 4: Simplify right side
   451,435.55x = 154,171,697,261.53
5. Step 5: Solve for x
   x = 154,171,697,261.53/451,435.55
6. Step 6: Final answer
   x = 341,514.31