Finding the Fourth Proportional to 12,576.42, 17,356.98 and 7,200.84

Step by Step Solution

1. Step 1: Write the proportion equation
   12,576.42 : 17,356.98 = 7,200.84 : x
2. Step 2: Convert to fraction form
   12,576.42/17,356.98 = 7,200.84/x
3. Step 3: Cross multiply
   12,576.42x = 17,356.98 × 7,200.84
4. Step 4: Simplify right side
   12,576.42x = 124,984,835.86
5. Step 5: Solve for x
   x = 124,984,835.86/12,576.42
6. Step 6: Final answer
   x = 9,938.03