Finding the Fourth Proportional to 10,316.89, 15,482.76 and 7,982.74

Step by Step Solution

1. Step 1: Write the proportion equation
   10,316.89 : 15,482.76 = 7,982.74 : x
2. Step 2: Convert to fraction form
   10,316.89/15,482.76 = 7,982.74/x
3. Step 3: Cross multiply
   10,316.89x = 15,482.76 × 7,982.74
4. Step 4: Simplify right side
   10,316.89x = 123,594,847.56
5. Step 5: Solve for x
   x = 123,594,847.56/10,316.89
6. Step 6: Final answer
   x = 11,979.86