Finding the Fourth Proportional to 12,399.01, 17,106.34 and 7,925.38

Step by Step Solution

1. Step 1: Write the proportion equation
   12,399.01 : 17,106.34 = 7,925.38 : x
2. Step 2: Convert to fraction form
   12,399.01/17,106.34 = 7,925.38/x
3. Step 3: Cross multiply
   12,399.01x = 17,106.34 × 7,925.38
4. Step 4: Simplify right side
   12,399.01x = 135,574,244.91
5. Step 5: Solve for x
   x = 135,574,244.91/12,399.01
6. Step 6: Final answer
   x = 10,934.28