Finding the Fourth Proportional to 12,051.97, 18,080.58 and 5,819.02

Step by Step Solution

1. Step 1: Write the proportion equation
   12,051.97 : 18,080.58 = 5,819.02 : x
2. Step 2: Convert to fraction form
   12,051.97/18,080.58 = 5,819.02/x
3. Step 3: Cross multiply
   12,051.97x = 18,080.58 × 5,819.02
4. Step 4: Simplify right side
   12,051.97x = 105,211,256.63
5. Step 5: Solve for x
   x = 105,211,256.63/12,051.97
6. Step 6: Final answer
   x = 8,729.80