Finding the Fourth Proportional to 12,804.80, 19,210.82 and 9,298.31

Step by Step Solution

1. Step 1: Write the proportion equation
   12,804.80 : 19,210.82 = 9,298.31 : x
2. Step 2: Convert to fraction form
   12,804.80/19,210.82 = 9,298.31/x
3. Step 3: Cross multiply
   12,804.80x = 19,210.82 × 9,298.31
4. Step 4: Simplify right side
   12,804.80x = 178,628,017.17
5. Step 5: Solve for x
   x = 178,628,017.17/12,804.80
6. Step 6: Final answer
   x = 13,950.09