Finding the Fourth Proportional to 12,646.08, 17,451.72 and 7,338.96

Step by Step Solution

1. Step 1: Write the proportion equation
   12,646.08 : 17,451.72 = 7,338.96 : x
2. Step 2: Convert to fraction form
   12,646.08/17,451.72 = 7,338.96/x
3. Step 3: Cross multiply
   12,646.08x = 17,451.72 × 7,338.96
4. Step 4: Simplify right side
   12,646.08x = 128,077,475.01
5. Step 5: Solve for x
   x = 128,077,475.01/12,646.08
6. Step 6: Final answer
   x = 10,127.84