Finding the Fourth Proportional to 7,914.50, 10,922.20 and 5,124.86

Step by Step Solution

1. Step 1: Write the proportion equation
   7,914.50 : 10,922.20 = 5,124.86 : x
2. Step 2: Convert to fraction form
   7,914.50/10,922.20 = 5,124.86/x
3. Step 3: Cross multiply
   7,914.50x = 10,922.20 × 5,124.86
4. Step 4: Simplify right side
   7,914.50x = 55,974,745.89
5. Step 5: Solve for x
   x = 55,974,745.89/7,914.50
6. Step 6: Final answer
   x = 7,072.43