Finding the Fourth Proportional to 9,820.54, 14,730.74 and 3,977.06

Step by Step Solution

1. Step 1: Write the proportion equation
   9,820.54 : 14,730.74 = 3,977.06 : x
2. Step 2: Convert to fraction form
   9,820.54/14,730.74 = 3,977.06/x
3. Step 3: Cross multiply
   9,820.54x = 14,730.74 × 3,977.06
4. Step 4: Simplify right side
   9,820.54x = 58,585,036.82
5. Step 5: Solve for x
   x = 58,585,036.82/9,820.54
6. Step 6: Final answer
   x = 5,965.56