Finding the Fourth Proportional to 12,998.22, 19,499.25 and 3,763.02

Step by Step Solution

1. Step 1: Write the proportion equation
   12,998.22 : 19,499.25 = 3,763.02 : x
2. Step 2: Convert to fraction form
   12,998.22/19,499.25 = 3,763.02/x
3. Step 3: Cross multiply
   12,998.22x = 19,499.25 × 3,763.02
4. Step 4: Simplify right side
   12,998.22x = 73,376,067.74
5. Step 5: Solve for x
   x = 73,376,067.74/12,998.22
6. Step 6: Final answer
   x = 5,645.09