Finding the Fourth Proportional to 155,921.82, 215,227.43 and 92,259.47

Step by Step Solution

1. Step 1: Write the proportion equation
   155,921.82 : 215,227.43 = 92,259.47 : x
2. Step 2: Convert to fraction form
   155,921.82/215,227.43 = 92,259.47/x
3. Step 3: Cross multiply
   155,921.82x = 215,227.43 × 92,259.47
4. Step 4: Simplify right side
   155,921.82x = 19,856,767,083.83
5. Step 5: Solve for x
   x = 19,856,767,083.83/155,921.82
6. Step 6: Final answer
   x = 127,350.79