Finding the Fourth Proportional to 12,374.32, 17,079.78 and 7,662.64

Step by Step Solution

1. Step 1: Write the proportion equation
   12,374.32 : 17,079.78 = 7,662.64 : x
2. Step 2: Convert to fraction form
   12,374.32/17,079.78 = 7,662.64/x
3. Step 3: Cross multiply
   12,374.32x = 17,079.78 × 7,662.64
4. Step 4: Simplify right side
   12,374.32x = 130,876,205.42
5. Step 5: Solve for x
   x = 130,876,205.42/12,374.32
6. Step 6: Final answer
   x = 10,576.44