Finding the Fourth Proportional to 9,316.25, 12,856.41 and 5,124.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,316.25 : 12,856.41 = 5,124.50 : x
2. Step 2: Convert to fraction form
   9,316.25/12,856.41 = 5,124.50/x
3. Step 3: Cross multiply
   9,316.25x = 12,856.41 × 5,124.50
4. Step 4: Simplify right side
   9,316.25x = 65,882,673.05
5. Step 5: Solve for x
   x = 65,882,673.05/9,316.25
6. Step 6: Final answer
   x = 7,071.80