Finding the Fourth Proportional to 86,708.37, 130,072.98 and 30,536.88

Step by Step Solution

1. Step 1: Write the proportion equation
   86,708.37 : 130,072.98 = 30,536.88 : x
2. Step 2: Convert to fraction form
   86,708.37/130,072.98 = 30,536.88/x
3. Step 3: Cross multiply
   86,708.37x = 130,072.98 × 30,536.88
4. Step 4: Simplify right side
   86,708.37x = 3,972,022,981.50
5. Step 5: Solve for x
   x = 3,972,022,981.50/86,708.37
6. Step 6: Final answer
   x = 45,808.99