Finding the Fourth Proportional to 9,964.72, 14,948.90 and 4,121.79

Step by Step Solution

1. Step 1: Write the proportion equation
   9,964.72 : 14,948.90 = 4,121.79 : x
2. Step 2: Convert to fraction form
   9,964.72/14,948.90 = 4,121.79/x
3. Step 3: Cross multiply
   9,964.72x = 14,948.90 × 4,121.79
4. Step 4: Simplify right side
   9,964.72x = 61,616,188.51
5. Step 5: Solve for x
   x = 61,616,188.51/9,964.72
6. Step 6: Final answer
   x = 6,183.43