Finding the Fourth Proportional to 144,764.32, 199,795.86 and 81,106.42

Step by Step Solution

1. Step 1: Write the proportion equation
   144,764.32 : 199,795.86 = 81,106.42 : x
2. Step 2: Convert to fraction form
   144,764.32/199,795.86 = 81,106.42/x
3. Step 3: Cross multiply
   144,764.32x = 199,795.86 × 81,106.42
4. Step 4: Simplify right side
   144,764.32x = 16,204,726,935.42
5. Step 5: Solve for x
   x = 16,204,726,935.42/144,764.32
6. Step 6: Final answer
   x = 111,938.68