Finding the Fourth Proportional to 9,819.56, 14,731.16 and 3,980.27

Step by Step Solution

1. Step 1: Write the proportion equation
   9,819.56 : 14,731.16 = 3,980.27 : x
2. Step 2: Convert to fraction form
   9,819.56/14,731.16 = 3,980.27/x
3. Step 3: Cross multiply
   9,819.56x = 14,731.16 × 3,980.27
4. Step 4: Simplify right side
   9,819.56x = 58,633,900.66
5. Step 5: Solve for x
   x = 58,633,900.66/9,819.56
6. Step 6: Final answer
   x = 5,971.14