Finding the Fourth Proportional to 51,578.64, 70,714.98 and 50,645.52

Step by Step Solution

1. Step 1: Write the proportion equation
   51,578.64 : 70,714.98 = 50,645.52 : x
2. Step 2: Convert to fraction form
   51,578.64/70,714.98 = 50,645.52/x
3. Step 3: Cross multiply
   51,578.64x = 70,714.98 × 50,645.52
4. Step 4: Simplify right side
   51,578.64x = 3,581,396,933.89
5. Step 5: Solve for x
   x = 3,581,396,933.89/51,578.64
6. Step 6: Final answer
   x = 69,435.66