Finding the Fourth Proportional to 206,572.55, 309,567.89 and 164,264.83

Step by Step Solution

1. Step 1: Write the proportion equation
   206,572.55 : 309,567.89 = 164,264.83 : x
2. Step 2: Convert to fraction form
   206,572.55/309,567.89 = 164,264.83/x
3. Step 3: Cross multiply
   206,572.55x = 309,567.89 × 164,264.83
4. Step 4: Simplify right side
   206,572.55x = 50,851,116,461.05
5. Step 5: Solve for x
   x = 50,851,116,461.05/206,572.55
6. Step 6: Final answer
   x = 246,165.90