Finding the Fourth Proportional to 144,672.73, 199,642.86 and 81,007.34

Step by Step Solution

1. Step 1: Write the proportion equation
   144,672.73 : 199,642.86 = 81,007.34 : x
2. Step 2: Convert to fraction form
   144,672.73/199,642.86 = 81,007.34/x
3. Step 3: Cross multiply
   144,672.73x = 199,642.86 × 81,007.34
4. Step 4: Simplify right side
   144,672.73x = 16,172,536,040.38
5. Step 5: Solve for x
   x = 16,172,536,040.38/144,672.73
6. Step 6: Final answer
   x = 111,787.04