Finding the Fourth Proportional to 86,091, 129,185.82 and 33,493.80

Step by Step Solution

1. Step 1: Write the proportion equation
   86,091 : 129,185.82 = 33,493.80 : x
2. Step 2: Convert to fraction form
   86,091/129,185.82 = 33,493.80/x
3. Step 3: Cross multiply
   86,091x = 129,185.82 × 33,493.80
4. Step 4: Simplify right side
   86,091x = 4,326,924,017.92
5. Step 5: Solve for x
   x = 4,326,924,017.92/86,091
6. Step 6: Final answer
   x = 50,259.89