Finding the Fourth Proportional to 144,916.40, 199,946.79 and 83,647.59

Step by Step Solution

1. Step 1: Write the proportion equation
   144,916.40 : 199,946.79 = 83,647.59 : x
2. Step 2: Convert to fraction form
   144,916.40/199,946.79 = 83,647.59/x
3. Step 3: Cross multiply
   144,916.40x = 199,946.79 × 83,647.59
4. Step 4: Simplify right side
   144,916.40x = 16,725,067,111.74
5. Step 5: Solve for x
   x = 16,725,067,111.74/144,916.40
6. Step 6: Final answer
   x = 115,411.84