Finding the Fourth Proportional to 60,697, 91,061.70 and 19,144

Step by Step Solution

1. Step 1: Write the proportion equation
   60,697 : 91,061.70 = 19,144 : x
2. Step 2: Convert to fraction form
   60,697/91,061.70 = 19,144/x
3. Step 3: Cross multiply
   60,697x = 91,061.70 × 19,144
4. Step 4: Simplify right side
   60,697x = 1,743,285,184.80
5. Step 5: Solve for x
   x = 1,743,285,184.80/60,697
6. Step 6: Final answer
   x = 28,721.11