Finding the Fourth Proportional to 11,449.37, 15,807.83 and 7,149.00

Step by Step Solution

1. Step 1: Write the proportion equation
   11,449.37 : 15,807.83 = 7,149.00 : x
2. Step 2: Convert to fraction form
   11,449.37/15,807.83 = 7,149.00/x
3. Step 3: Cross multiply
   11,449.37x = 15,807.83 × 7,149.00
4. Step 4: Simplify right side
   11,449.37x = 113,010,240.42
5. Step 5: Solve for x
   x = 113,010,240.42/11,449.37
6. Step 6: Final answer
   x = 9,870.44