Finding the Fourth Proportional to 146,945.10, 206,189.70 and 146,945.10

Step by Step Solution

1. Step 1: Write the proportion equation
   146,945.10 : 206,189.70 = 146,945.10 : x
2. Step 2: Convert to fraction form
   146,945.10/206,189.70 = 146,945.10/x
3. Step 3: Cross multiply
   146,945.10x = 206,189.70 × 146,945.10
4. Step 4: Simplify right side
   146,945.10x = 30,298,566,085.47
5. Step 5: Solve for x
   x = 30,298,566,085.47/146,945.10
6. Step 6: Final answer
   x = 206,189.70