Finding the Fourth Proportional to 9,479.63, 14,200.42 and 4,721.45

Step by Step Solution

1. Step 1: Write the proportion equation
   9,479.63 : 14,200.42 = 4,721.45 : x
2. Step 2: Convert to fraction form
   9,479.63/14,200.42 = 4,721.45/x
3. Step 3: Cross multiply
   9,479.63x = 14,200.42 × 4,721.45
4. Step 4: Simplify right side
   9,479.63x = 67,046,605.56
5. Step 5: Solve for x
   x = 67,046,605.56/9,479.63
6. Step 6: Final answer
   x = 7,072.70