Finding the Fourth Proportional to 51,128.82, 70,557.21 and 28,467.32

Step by Step Solution

1. Step 1: Write the proportion equation
   51,128.82 : 70,557.21 = 28,467.32 : x
2. Step 2: Convert to fraction form
   51,128.82/70,557.21 = 28,467.32/x
3. Step 3: Cross multiply
   51,128.82x = 70,557.21 × 28,467.32
4. Step 4: Simplify right side
   51,128.82x = 2,008,574,322.59
5. Step 5: Solve for x
   x = 2,008,574,322.59/51,128.82
6. Step 6: Final answer
   x = 39,284.58