Finding the Fourth Proportional to 11,897.30, 16,412.78 and 8,362.56

Step by Step Solution

1. Step 1: Write the proportion equation
   11,897.30 : 16,412.78 = 8,362.56 : x
2. Step 2: Convert to fraction form
   11,897.30/16,412.78 = 8,362.56/x
3. Step 3: Cross multiply
   11,897.30x = 16,412.78 × 8,362.56
4. Step 4: Simplify right side
   11,897.30x = 137,252,857.52
5. Step 5: Solve for x
   x = 137,252,857.52/11,897.30
6. Step 6: Final answer
   x = 11,536.47