Finding the Fourth Proportional to 10,974.07, 15,145.65 and 7,200.46

Step by Step Solution

1. Step 1: Write the proportion equation
   10,974.07 : 15,145.65 = 7,200.46 : x
2. Step 2: Convert to fraction form
   10,974.07/15,145.65 = 7,200.46/x
3. Step 3: Cross multiply
   10,974.07x = 15,145.65 × 7,200.46
4. Step 4: Simplify right side
   10,974.07x = 109,055,647.00
5. Step 5: Solve for x
   x = 109,055,647.00/10,974.07
6. Step 6: Final answer
   x = 9,937.58