Finding the Fourth Proportional to 83,211.59, 124,848.56 and 43,205.60

Step by Step Solution

1. Step 1: Write the proportion equation
   83,211.59 : 124,848.56 = 43,205.60 : x
2. Step 2: Convert to fraction form
   83,211.59/124,848.56 = 43,205.60/x
3. Step 3: Cross multiply
   83,211.59x = 124,848.56 × 43,205.60
4. Step 4: Simplify right side
   83,211.59x = 5,394,156,103.67
5. Step 5: Solve for x
   x = 5,394,156,103.67/83,211.59
6. Step 6: Final answer
   x = 64,824.58