Finding the Fourth Proportional to 103,620.15, 155,171.02 and 82,884.15

Step by Step Solution

1. Step 1: Write the proportion equation
   103,620.15 : 155,171.02 = 82,884.15 : x
2. Step 2: Convert to fraction form
   103,620.15/155,171.02 = 82,884.15/x
3. Step 3: Cross multiply
   103,620.15x = 155,171.02 × 82,884.15
4. Step 4: Simplify right side
   103,620.15x = 12,861,218,097.33
5. Step 5: Solve for x
   x = 12,861,218,097.33/103,620.15
6. Step 6: Final answer
   x = 124,118.89