Finding the Fourth Proportional to 82,815.70, 124,114.20 and 73,411.60

Step by Step Solution

1. Step 1: Write the proportion equation
   82,815.70 : 124,114.20 = 73,411.60 : x
2. Step 2: Convert to fraction form
   82,815.70/124,114.20 = 73,411.60/x
3. Step 3: Cross multiply
   82,815.70x = 124,114.20 × 73,411.60
4. Step 4: Simplify right side
   82,815.70x = 9,111,422,004.72
5. Step 5: Solve for x
   x = 9,111,422,004.72/82,815.70
6. Step 6: Final answer
   x = 110,020.47