Finding the Fourth Proportional to 82,765.50, 124,172.73 and 47,730.30

Step by Step Solution

1. Step 1: Write the proportion equation
   82,765.50 : 124,172.73 = 47,730.30 : x
2. Step 2: Convert to fraction form
   82,765.50/124,172.73 = 47,730.30/x
3. Step 3: Cross multiply
   82,765.50x = 124,172.73 × 47,730.30
4. Step 4: Simplify right side
   82,765.50x = 5,926,801,654.72
5. Step 5: Solve for x
   x = 5,926,801,654.72/82,765.50
6. Step 6: Final answer
   x = 71,609.57