Finding the Fourth Proportional to 42,732.06, 64,121.04 and 17,789.33

Step by Step Solution

1. Step 1: Write the proportion equation
   42,732.06 : 64,121.04 = 17,789.33 : x
2. Step 2: Convert to fraction form
   42,732.06/64,121.04 = 17,789.33/x
3. Step 3: Cross multiply
   42,732.06x = 64,121.04 × 17,789.33
4. Step 4: Simplify right side
   42,732.06x = 1,140,670,019.90
5. Step 5: Solve for x
   x = 1,140,670,019.90/42,732.06
6. Step 6: Final answer
   x = 26,693.54