Finding the Fourth Proportional to 7,902.48, 10,899.28 and 5,103.12

Step by Step Solution

1. Step 1: Write the proportion equation
   7,902.48 : 10,899.28 = 5,103.12 : x
2. Step 2: Convert to fraction form
   7,902.48/10,899.28 = 5,103.12/x
3. Step 3: Cross multiply
   7,902.48x = 10,899.28 × 5,103.12
4. Step 4: Simplify right side
   7,902.48x = 55,620,333.75
5. Step 5: Solve for x
   x = 55,620,333.75/7,902.48
6. Step 6: Final answer
   x = 7,038.34