Finding the Fourth Proportional to 86,770.02, 130,191.89 and 30,640.67

Step by Step Solution

1. Step 1: Write the proportion equation
   86,770.02 : 130,191.89 = 30,640.67 : x
2. Step 2: Convert to fraction form
   86,770.02/130,191.89 = 30,640.67/x
3. Step 3: Cross multiply
   86,770.02x = 130,191.89 × 30,640.67
4. Step 4: Simplify right side
   86,770.02x = 3,989,166,738.17
5. Step 5: Solve for x
   x = 3,989,166,738.17/86,770.02
6. Step 6: Final answer
   x = 45,974.02