Finding the Fourth Proportional to 86,301.84, 129,449.69 and 30,141.73

Step by Step Solution

1. Step 1: Write the proportion equation
   86,301.84 : 129,449.69 = 30,141.73 : x
2. Step 2: Convert to fraction form
   86,301.84/129,449.69 = 30,141.73/x
3. Step 3: Cross multiply
   86,301.84x = 129,449.69 × 30,141.73
4. Step 4: Simplify right side
   86,301.84x = 3,901,837,604.56
5. Step 5: Solve for x
   x = 3,901,837,604.56/86,301.84
6. Step 6: Final answer
   x = 45,211.52