Finding the Fourth Proportional to 86,010, 128,981.82 and 33,412.56

Step by Step Solution

1. Step 1: Write the proportion equation
   86,010 : 128,981.82 = 33,412.56 : x
2. Step 2: Convert to fraction form
   86,010/128,981.82 = 33,412.56/x
3. Step 3: Cross multiply
   86,010x = 128,981.82 × 33,412.56
4. Step 4: Simplify right side
   86,010x = 4,309,612,799.66
5. Step 5: Solve for x
   x = 4,309,612,799.66/86,010
6. Step 6: Final answer
   x = 50,105.95