Finding the Fourth Proportional to 104,427.94, 156,404.18 and 81,797.36

Step by Step Solution

1. Step 1: Write the proportion equation
   104,427.94 : 156,404.18 = 81,797.36 : x
2. Step 2: Convert to fraction form
   104,427.94/156,404.18 = 81,797.36/x
3. Step 3: Cross multiply
   104,427.94x = 156,404.18 × 81,797.36
4. Step 4: Simplify right side
   104,427.94x = 12,793,449,016.96
5. Step 5: Solve for x
   x = 12,793,449,016.96/104,427.94
6. Step 6: Final answer
   x = 122,509.83