Finding the Fourth Proportional to 12,975.32, 17,907.27 and 7,942.87

Step by Step Solution

1. Step 1: Write the proportion equation
   12,975.32 : 17,907.27 = 7,942.87 : x
2. Step 2: Convert to fraction form
   12,975.32/17,907.27 = 7,942.87/x
3. Step 3: Cross multiply
   12,975.32x = 17,907.27 × 7,942.87
4. Step 4: Simplify right side
   12,975.32x = 142,234,988.41
5. Step 5: Solve for x
   x = 142,234,988.41/12,975.32
6. Step 6: Final answer
   x = 10,961.96