Finding the Fourth Proportional to 9,365.34, 12,909.24 and 7,372.74

Step by Step Solution

1. Step 1: Write the proportion equation
   9,365.34 : 12,909.24 = 7,372.74 : x
2. Step 2: Convert to fraction form
   9,365.34/12,909.24 = 7,372.74/x
3. Step 3: Cross multiply
   9,365.34x = 12,909.24 × 7,372.74
4. Step 4: Simplify right side
   9,365.34x = 95,176,470.12
5. Step 5: Solve for x
   x = 95,176,470.12/9,365.34
6. Step 6: Final answer
   x = 10,162.63