Finding the Fourth Proportional to 243,648.55, 336,265.89 and 136,224.94

Step by Step Solution

1. Step 1: Write the proportion equation
   243,648.55 : 336,265.89 = 136,224.94 : x
2. Step 2: Convert to fraction form
   243,648.55/336,265.89 = 136,224.94/x
3. Step 3: Cross multiply
   243,648.55x = 336,265.89 × 136,224.94
4. Step 4: Simplify right side
   243,648.55x = 45,807,800,689.30
5. Step 5: Solve for x
   x = 45,807,800,689.30/243,648.55
6. Step 6: Final answer
   x = 188,007.69