Finding the Fourth Proportional to 86,076.50, 129,119.61 and 30,672.50

Step by Step Solution

1. Step 1: Write the proportion equation
   86,076.50 : 129,119.61 = 30,672.50 : x
2. Step 2: Convert to fraction form
   86,076.50/129,119.61 = 30,672.50/x
3. Step 3: Cross multiply
   86,076.50x = 129,119.61 × 30,672.50
4. Step 4: Simplify right side
   86,076.50x = 3,960,421,237.73
5. Step 5: Solve for x
   x = 3,960,421,237.73/86,076.50
6. Step 6: Final answer
   x = 46,010.48