Finding the Fourth Proportional to 12,002.79, 16,561.38 and 6,897.32

Step by Step Solution

1. Step 1: Write the proportion equation
   12,002.79 : 16,561.38 = 6,897.32 : x
2. Step 2: Convert to fraction form
   12,002.79/16,561.38 = 6,897.32/x
3. Step 3: Cross multiply
   12,002.79x = 16,561.38 × 6,897.32
4. Step 4: Simplify right side
   12,002.79x = 114,229,202.83
5. Step 5: Solve for x
   x = 114,229,202.83/12,002.79
6. Step 6: Final answer
   x = 9,516.89