Finding the Fourth Proportional to 109,789.92, 164,422.32 and 104,278.80

Step by Step Solution

1. Step 1: Write the proportion equation
   109,789.92 : 164,422.32 = 104,278.80 : x
2. Step 2: Convert to fraction form
   109,789.92/164,422.32 = 104,278.80/x
3. Step 3: Cross multiply
   109,789.92x = 164,422.32 × 104,278.80
4. Step 4: Simplify right side
   109,789.92x = 17,145,762,222.82
5. Step 5: Solve for x
   x = 17,145,762,222.82/109,789.92
6. Step 6: Final answer
   x = 156,168.82