Finding the Fourth Proportional to 12,300.84, 18,454.14 and 3,980.52

Step by Step Solution

1. Step 1: Write the proportion equation
   12,300.84 : 18,454.14 = 3,980.52 : x
2. Step 2: Convert to fraction form
   12,300.84/18,454.14 = 3,980.52/x
3. Step 3: Cross multiply
   12,300.84x = 18,454.14 × 3,980.52
4. Step 4: Simplify right side
   12,300.84x = 73,457,073.35
5. Step 5: Solve for x
   x = 73,457,073.35/12,300.84
6. Step 6: Final answer
   x = 5,971.71