Finding the Fourth Proportional to 12,540.00, 17,305.76 and 7,162.90

Step by Step Solution

1. Step 1: Write the proportion equation
   12,540.00 : 17,305.76 = 7,162.90 : x
2. Step 2: Convert to fraction form
   12,540.00/17,305.76 = 7,162.90/x
3. Step 3: Cross multiply
   12,540.00x = 17,305.76 × 7,162.90
4. Step 4: Simplify right side
   12,540.00x = 123,959,392.49
5. Step 5: Solve for x
   x = 123,959,392.49/12,540.00
6. Step 6: Final answer
   x = 9,885.12