Finding the Fourth Proportional to 200,097.82, 300,147.18 and 81,769.15

Step by Step Solution

1. Step 1: Write the proportion equation
   200,097.82 : 300,147.18 = 81,769.15 : x
2. Step 2: Convert to fraction form
   200,097.82/300,147.18 = 81,769.15/x
3. Step 3: Cross multiply
   200,097.82x = 300,147.18 × 81,769.15
4. Step 4: Simplify right side
   200,097.82x = 24,542,779,783.50
5. Step 5: Solve for x
   x = 24,542,779,783.50/200,097.82
6. Step 6: Final answer
   x = 122,653.91