Finding the Fourth Proportional to 7,899.88, 10,902.44 and 5,113.48

Step by Step Solution

1. Step 1: Write the proportion equation
   7,899.88 : 10,902.44 = 5,113.48 : x
2. Step 2: Convert to fraction form
   7,899.88/10,902.44 = 5,113.48/x
3. Step 3: Cross multiply
   7,899.88x = 10,902.44 × 5,113.48
4. Step 4: Simplify right side
   7,899.88x = 55,749,408.89
5. Step 5: Solve for x
   x = 55,749,408.89/7,899.88
6. Step 6: Final answer
   x = 7,056.99