Finding the Fourth Proportional to 12,937.09, 17,853.89 and 7,195.15

Step by Step Solution

1. Step 1: Write the proportion equation
   12,937.09 : 17,853.89 = 7,195.15 : x
2. Step 2: Convert to fraction form
   12,937.09/17,853.89 = 7,195.15/x
3. Step 3: Cross multiply
   12,937.09x = 17,853.89 × 7,195.15
4. Step 4: Simplify right side
   12,937.09x = 128,461,513.90
5. Step 5: Solve for x
   x = 128,461,513.90/12,937.09
6. Step 6: Final answer
   x = 9,929.71