Finding the Fourth Proportional to 42,905.32, 64,382.15 and 33,519.03

Step by Step Solution

1. Step 1: Write the proportion equation
   42,905.32 : 64,382.15 = 33,519.03 : x
2. Step 2: Convert to fraction form
   42,905.32/64,382.15 = 33,519.03/x
3. Step 3: Cross multiply
   42,905.32x = 64,382.15 × 33,519.03
4. Step 4: Simplify right side
   42,905.32x = 2,158,027,217.31
5. Step 5: Solve for x
   x = 2,158,027,217.31/42,905.32
6. Step 6: Final answer
   x = 50,297.43