Finding the Fourth Proportional to 42,936.52, 64,404.94 and 17,959.04

Step by Step Solution

1. Step 1: Write the proportion equation
   42,936.52 : 64,404.94 = 17,959.04 : x
2. Step 2: Convert to fraction form
   42,936.52/64,404.94 = 17,959.04/x
3. Step 3: Cross multiply
   42,936.52x = 64,404.94 × 17,959.04
4. Step 4: Simplify right side
   42,936.52x = 1,156,650,893.66
5. Step 5: Solve for x
   x = 1,156,650,893.66/42,936.52
6. Step 6: Final answer
   x = 26,938.63