Finding the Fourth Proportional to 373,100.53, 514,896.98 and 209,808.42

Step by Step Solution

1. Step 1: Write the proportion equation
   373,100.53 : 514,896.98 = 209,808.42 : x
2. Step 2: Convert to fraction form
   373,100.53/514,896.98 = 209,808.42/x
3. Step 3: Cross multiply
   373,100.53x = 514,896.98 × 209,808.42
4. Step 4: Simplify right side
   373,100.53x = 108,029,721,836.57
5. Step 5: Solve for x
   x = 108,029,721,836.57/373,100.53
6. Step 6: Final answer
   x = 289,545.88