Finding the Fourth Proportional to 42,697, 64,044.10 and 19,323.42

Step by Step Solution

1. Step 1: Write the proportion equation
   42,697 : 64,044.10 = 19,323.42 : x
2. Step 2: Convert to fraction form
   42,697/64,044.10 = 19,323.42/x
3. Step 3: Cross multiply
   42,697x = 64,044.10 × 19,323.42
4. Step 4: Simplify right side
   42,697x = 1,237,551,042.82
5. Step 5: Solve for x
   x = 1,237,551,042.82/42,697
6. Step 6: Final answer
   x = 28,984.50