Finding the Fourth Proportional to 308,316.42, 425,547.72 and 200,698.98

Step by Step Solution

1. Step 1: Write the proportion equation
   308,316.42 : 425,547.72 = 200,698.98 : x
2. Step 2: Convert to fraction form
   308,316.42/425,547.72 = 200,698.98/x
3. Step 3: Cross multiply
   308,316.42x = 425,547.72 × 200,698.98
4. Step 4: Simplify right side
   308,316.42x = 85,406,993,345.33
5. Step 5: Solve for x
   x = 85,406,993,345.33/308,316.42
6. Step 6: Final answer
   x = 277,010.85