Finding the Fourth Proportional to 12,981.03, 19,459.84 and 4,659.09

Step by Step Solution

1. Step 1: Write the proportion equation
   12,981.03 : 19,459.84 = 4,659.09 : x
2. Step 2: Convert to fraction form
   12,981.03/19,459.84 = 4,659.09/x
3. Step 3: Cross multiply
   12,981.03x = 19,459.84 × 4,659.09
4. Step 4: Simplify right side
   12,981.03x = 90,665,145.95
5. Step 5: Solve for x
   x = 90,665,145.95/12,981.03
6. Step 6: Final answer
   x = 6,984.43