Finding the Fourth Proportional to 510,665.92, 766,049.64 and 195,388

Step by Step Solution

1. Step 1: Write the proportion equation
   510,665.92 : 766,049.64 = 195,388 : x
2. Step 2: Convert to fraction form
   510,665.92/766,049.64 = 195,388/x
3. Step 3: Cross multiply
   510,665.92x = 766,049.64 × 195,388
4. Step 4: Simplify right side
   510,665.92x = 149,676,907,060.32
5. Step 5: Solve for x
   x = 149,676,907,060.32/510,665.92
6. Step 6: Final answer
   x = 293,101.42