Finding the Fourth Proportional to 10,245.37, 15,357.12 and 7,314.79

Step by Step Solution

1. Step 1: Write the proportion equation
   10,245.37 : 15,357.12 = 7,314.79 : x
2. Step 2: Convert to fraction form
   10,245.37/15,357.12 = 7,314.79/x
3. Step 3: Cross multiply
   10,245.37x = 15,357.12 × 7,314.79
4. Step 4: Simplify right side
   10,245.37x = 112,334,107.80
5. Step 5: Solve for x
   x = 112,334,107.80/10,245.37
6. Step 6: Final answer
   x = 10,964.38