Finding the Fourth Proportional to 364,545.69, 503,061.26 and 198,967.31

Step by Step Solution

1. Step 1: Write the proportion equation
   364,545.69 : 503,061.26 = 198,967.31 : x
2. Step 2: Convert to fraction form
   364,545.69/503,061.26 = 198,967.31/x
3. Step 3: Cross multiply
   364,545.69x = 503,061.26 × 198,967.31
4. Step 4: Simplify right side
   364,545.69x = 100,092,745,667.41
5. Step 5: Solve for x
   x = 100,092,745,667.41/364,545.69
6. Step 6: Final answer
   x = 274,568.45