Finding the Fourth Proportional to 12,131.20, 16,734.92 and 7,092.12

Step by Step Solution

1. Step 1: Write the proportion equation
   12,131.20 : 16,734.92 = 7,092.12 : x
2. Step 2: Convert to fraction form
   12,131.20/16,734.92 = 7,092.12/x
3. Step 3: Cross multiply
   12,131.20x = 16,734.92 × 7,092.12
4. Step 4: Simplify right side
   12,131.20x = 118,686,060.83
5. Step 5: Solve for x
   x = 118,686,060.83/12,131.20
6. Step 6: Final answer
   x = 9,783.54