Finding the Fourth Proportional to 146,587.10, 205,688.50 and 146,587.10

Step by Step Solution

1. Step 1: Write the proportion equation
   146,587.10 : 205,688.50 = 146,587.10 : x
2. Step 2: Convert to fraction form
   146,587.10/205,688.50 = 146,587.10/x
3. Step 3: Cross multiply
   146,587.10x = 205,688.50 × 146,587.10
4. Step 4: Simplify right side
   146,587.10x = 30,151,280,718.35
5. Step 5: Solve for x
   x = 30,151,280,718.35/146,587.10
6. Step 6: Final answer
   x = 205,688.50