Finding the Fourth Proportional to 12,080.45, 18,119.86 and 3,314.63

Step by Step Solution

1. Step 1: Write the proportion equation
   12,080.45 : 18,119.86 = 3,314.63 : x
2. Step 2: Convert to fraction form
   12,080.45/18,119.86 = 3,314.63/x
3. Step 3: Cross multiply
   12,080.45x = 18,119.86 × 3,314.63
4. Step 4: Simplify right side
   12,080.45x = 60,060,631.55
5. Step 5: Solve for x
   x = 60,060,631.55/12,080.45
6. Step 6: Final answer
   x = 4,971.72