Finding the Fourth Proportional to 243,839.34, 336,498.78 and 136,411.17

Step by Step Solution

1. Step 1: Write the proportion equation
   243,839.34 : 336,498.78 = 136,411.17 : x
2. Step 2: Convert to fraction form
   243,839.34/336,498.78 = 136,411.17/x
3. Step 3: Cross multiply
   243,839.34x = 336,498.78 × 136,411.17
4. Step 4: Simplify right side
   243,839.34x = 45,902,192,283.37
5. Step 5: Solve for x
   x = 45,902,192,283.37/243,839.34
6. Step 6: Final answer
   x = 188,247.69