Finding the Fourth Proportional to 7,880, 10,875.48 and 5,084.96

Step by Step Solution

1. Step 1: Write the proportion equation
   7,880 : 10,875.48 = 5,084.96 : x
2. Step 2: Convert to fraction form
   7,880/10,875.48 = 5,084.96/x
3. Step 3: Cross multiply
   7,880x = 10,875.48 × 5,084.96
4. Step 4: Simplify right side
   7,880x = 55,301,380.78
5. Step 5: Solve for x
   x = 55,301,380.78/7,880
6. Step 6: Final answer
   x = 7,017.94