Finding the Fourth Proportional to 7,146.72, 10,725.30 and 7,092.42

Step by Step Solution

1. Step 1: Write the proportion equation
   7,146.72 : 10,725.30 = 7,092.42 : x
2. Step 2: Convert to fraction form
   7,146.72/10,725.30 = 7,092.42/x
3. Step 3: Cross multiply
   7,146.72x = 10,725.30 × 7,092.42
4. Step 4: Simplify right side
   7,146.72x = 76,068,332.23
5. Step 5: Solve for x
   x = 76,068,332.23/7,146.72
6. Step 6: Final answer
   x = 10,643.81