Finding the Fourth Proportional to 9,825.39, 14,738.18 and 3,980.63

Step by Step Solution

1. Step 1: Write the proportion equation
   9,825.39 : 14,738.18 = 3,980.63 : x
2. Step 2: Convert to fraction form
   9,825.39/14,738.18 = 3,980.63/x
3. Step 3: Cross multiply
   9,825.39x = 14,738.18 × 3,980.63
4. Step 4: Simplify right side
   9,825.39x = 58,667,147.86
5. Step 5: Solve for x
   x = 58,667,147.86/9,825.39
6. Step 6: Final answer
   x = 5,970.97