Finding the Fourth Proportional to 11,143.00, 15,384.33 and 7,171.01

Step by Step Solution

1. Step 1: Write the proportion equation
   11,143.00 : 15,384.33 = 7,171.01 : x
2. Step 2: Convert to fraction form
   11,143.00/15,384.33 = 7,171.01/x
3. Step 3: Cross multiply
   11,143.00x = 15,384.33 × 7,171.01
4. Step 4: Simplify right side
   11,143.00x = 110,321,148.42
5. Step 5: Solve for x
   x = 110,321,148.42/11,143.00
6. Step 6: Final answer
   x = 9,900.49