Finding the Fourth Proportional to 12,922.18, 17,833.49 and 7,180.32

Step by Step Solution

1. Step 1: Write the proportion equation
   12,922.18 : 17,833.49 = 7,180.32 : x
2. Step 2: Convert to fraction form
   12,922.18/17,833.49 = 7,180.32/x
3. Step 3: Cross multiply
   12,922.18x = 17,833.49 × 7,180.32
4. Step 4: Simplify right side
   12,922.18x = 128,050,164.92
5. Step 5: Solve for x
   x = 128,050,164.92/12,922.18
6. Step 6: Final answer
   x = 9,909.33