Finding the Fourth Proportional to 272,667.52, 409,062.72 and 83,144.64

Step by Step Solution

1. Step 1: Write the proportion equation
   272,667.52 : 409,062.72 = 83,144.64 : x
2. Step 2: Convert to fraction form
   272,667.52/409,062.72 = 83,144.64/x
3. Step 3: Cross multiply
   272,667.52x = 409,062.72 × 83,144.64
4. Step 4: Simplify right side
   272,667.52x = 34,011,372,591.82
5. Step 5: Solve for x
   x = 34,011,372,591.82/272,667.52
6. Step 6: Final answer
   x = 124,735.69