Finding the Fourth Proportional to 7,960.41, 10,985.90 and 5,312.25

Step by Step Solution

1. Step 1: Write the proportion equation
   7,960.41 : 10,985.90 = 5,312.25 : x
2. Step 2: Convert to fraction form
   7,960.41/10,985.90 = 5,312.25/x
3. Step 3: Cross multiply
   7,960.41x = 10,985.90 × 5,312.25
4. Step 4: Simplify right side
   7,960.41x = 58,359,820.71
5. Step 5: Solve for x
   x = 58,359,820.71/7,960.41
6. Step 6: Final answer
   x = 7,331.26