Finding the Fourth Proportional to 9,992.34, 14,984.15 and 5,311.23

Step by Step Solution

1. Step 1: Write the proportion equation
   9,992.34 : 14,984.15 = 5,311.23 : x
2. Step 2: Convert to fraction form
   9,992.34/14,984.15 = 5,311.23/x
3. Step 3: Cross multiply
   9,992.34x = 14,984.15 × 5,311.23
4. Step 4: Simplify right side
   9,992.34x = 79,584,240.45
5. Step 5: Solve for x
   x = 79,584,240.45/9,992.34
6. Step 6: Final answer
   x = 7,964.52