Finding the Fourth Proportional to 243,387.59, 335,875.59 and 135,961.69

Step by Step Solution

1. Step 1: Write the proportion equation
   243,387.59 : 335,875.59 = 135,961.69 : x
2. Step 2: Convert to fraction form
   243,387.59/335,875.59 = 135,961.69/x
3. Step 3: Cross multiply
   243,387.59x = 335,875.59 × 135,961.69
4. Step 4: Simplify right side
   243,387.59x = 45,666,212,253.83
5. Step 5: Solve for x
   x = 45,666,212,253.83/243,387.59
6. Step 6: Final answer
   x = 187,627.53