Finding the Fourth Proportional to 9,092.79, 12,548.25 and 5,113.89

Step by Step Solution

1. Step 1: Write the proportion equation
   9,092.79 : 12,548.25 = 5,113.89 : x
2. Step 2: Convert to fraction form
   9,092.79/12,548.25 = 5,113.89/x
3. Step 3: Cross multiply
   9,092.79x = 12,548.25 × 5,113.89
4. Step 4: Simplify right side
   9,092.79x = 64,170,370.19
5. Step 5: Solve for x
   x = 64,170,370.19/9,092.79
6. Step 6: Final answer
   x = 7,057.28