Finding the Fourth Proportional to 19,280.50, 26,610.74 and 10,897

Step by Step Solution

1. Step 1: Write the proportion equation
   19,280.50 : 26,610.74 = 10,897 : x
2. Step 2: Convert to fraction form
   19,280.50/26,610.74 = 10,897/x
3. Step 3: Cross multiply
   19,280.50x = 26,610.74 × 10,897
4. Step 4: Simplify right side
   19,280.50x = 289,977,233.78
5. Step 5: Solve for x
   x = 289,977,233.78/19,280.50
6. Step 6: Final answer
   x = 15,039.92