Finding the Fourth Proportional to 43,196.56, 64,743.13 and 28,210.82

Step by Step Solution

1. Step 1: Write the proportion equation
   43,196.56 : 64,743.13 = 28,210.82 : x
2. Step 2: Convert to fraction form
   43,196.56/64,743.13 = 28,210.82/x
3. Step 3: Cross multiply
   43,196.56x = 64,743.13 × 28,210.82
4. Step 4: Simplify right side
   43,196.56x = 1,826,456,498.21
5. Step 5: Solve for x
   x = 1,826,456,498.21/43,196.56
6. Step 6: Final answer
   x = 42,282.45