Finding the Fourth Proportional to 193,856.82, 267,241.98 and 128,335.82

Step by Step Solution

1. Step 1: Write the proportion equation
   193,856.82 : 267,241.98 = 128,335.82 : x
2. Step 2: Convert to fraction form
   193,856.82/267,241.98 = 128,335.82/x
3. Step 3: Cross multiply
   193,856.82x = 267,241.98 × 128,335.82
4. Step 4: Simplify right side
   193,856.82x = 34,296,718,538.39
5. Step 5: Solve for x
   x = 34,296,718,538.39/193,856.82
6. Step 6: Final answer
   x = 176,917.78