Finding the Fourth Proportional to 12,922.29, 19,383.53 and 5,131.08

Step by Step Solution

1. Step 1: Write the proportion equation
   12,922.29 : 19,383.53 = 5,131.08 : x
2. Step 2: Convert to fraction form
   12,922.29/19,383.53 = 5,131.08/x
3. Step 3: Cross multiply
   12,922.29x = 19,383.53 × 5,131.08
4. Step 4: Simplify right side
   12,922.29x = 99,458,417.46
5. Step 5: Solve for x
   x = 99,458,417.46/12,922.29
6. Step 6: Final answer
   x = 7,696.66