Finding the Fourth Proportional to 204,388.10, 308,501.94 and 204,388.10

Step by Step Solution

1. Step 1: Write the proportion equation
   204,388.10 : 308,501.94 = 204,388.10 : x
2. Step 2: Convert to fraction form
   204,388.10/308,501.94 = 204,388.10/x
3. Step 3: Cross multiply
   204,388.10x = 308,501.94 × 204,388.10
4. Step 4: Simplify right side
   204,388.10x = 63,054,123,820.40
5. Step 5: Solve for x
   x = 63,054,123,820.40/204,388.10
6. Step 6: Final answer
   x = 308,501.94