Finding the Fourth Proportional to 42,968.42, 64,455.73 and 17,983.33

Step by Step Solution

1. Step 1: Write the proportion equation
   42,968.42 : 64,455.73 = 17,983.33 : x
2. Step 2: Convert to fraction form
   42,968.42/64,455.73 = 17,983.33/x
3. Step 3: Cross multiply
   42,968.42x = 64,455.73 × 17,983.33
4. Step 4: Simplify right side
   42,968.42x = 1,159,128,456.88
5. Step 5: Solve for x
   x = 1,159,128,456.88/42,968.42
6. Step 6: Final answer
   x = 26,976.29