Finding the Fourth Proportional to 154,039, 212,573.84 and 83,383

Step by Step Solution

1. Step 1: Write the proportion equation
   154,039 : 212,573.84 = 83,383 : x
2. Step 2: Convert to fraction form
   154,039/212,573.84 = 83,383/x
3. Step 3: Cross multiply
   154,039x = 212,573.84 × 83,383
4. Step 4: Simplify right side
   154,039x = 17,725,044,500.72
5. Step 5: Solve for x
   x = 17,725,044,500.72/154,039
6. Step 6: Final answer
   x = 115,068.55