Finding the Fourth Proportional to 12,897.34, 19,353.17 and 6,974.08

Step by Step Solution

1. Step 1: Write the proportion equation
   12,897.34 : 19,353.17 = 6,974.08 : x
2. Step 2: Convert to fraction form
   12,897.34/19,353.17 = 6,974.08/x
3. Step 3: Cross multiply
   12,897.34x = 19,353.17 × 6,974.08
4. Step 4: Simplify right side
   12,897.34x = 134,970,555.83
5. Step 5: Solve for x
   x = 134,970,555.83/12,897.34
6. Step 6: Final answer
   x = 10,464.99