Finding the Fourth Proportional to 243,724.50, 336,333.50 and 134,826

Step by Step Solution

1. Step 1: Write the proportion equation
   243,724.50 : 336,333.50 = 134,826 : x
2. Step 2: Convert to fraction form
   243,724.50/336,333.50 = 134,826/x
3. Step 3: Cross multiply
   243,724.50x = 336,333.50 × 134,826
4. Step 4: Simplify right side
   243,724.50x = 45,346,499,796.87
5. Step 5: Solve for x
   x = 45,346,499,796.87/243,724.50
6. Step 6: Final answer
   x = 186,056.39