Finding the Fourth Proportional to 42,896.05, 64,369.37 and 17,934.18

Step by Step Solution

1. Step 1: Write the proportion equation
   42,896.05 : 64,369.37 = 17,934.18 : x
2. Step 2: Convert to fraction form
   42,896.05/64,369.37 = 17,934.18/x
3. Step 3: Cross multiply
   42,896.05x = 64,369.37 × 17,934.18
4. Step 4: Simplify right side
   42,896.05x = 1,154,411,868.07
5. Step 5: Solve for x
   x = 1,154,411,868.07/42,896.05
6. Step 6: Final answer
   x = 26,911.85