Finding the Fourth Proportional to 7,127.00, 10,681.07 and 5,159.20

Step by Step Solution

1. Step 1: Write the proportion equation
   7,127.00 : 10,681.07 = 5,159.20 : x
2. Step 2: Convert to fraction form
   7,127.00/10,681.07 = 5,159.20/x
3. Step 3: Cross multiply
   7,127.00x = 10,681.07 × 5,159.20
4. Step 4: Simplify right side
   7,127.00x = 55,105,776.34
5. Step 5: Solve for x
   x = 55,105,776.34/7,127.00
6. Step 6: Final answer
   x = 7,731.98