Finding the Fourth Proportional to 9,353.72, 12,907.68 and 5,373.92

Step by Step Solution

1. Step 1: Write the proportion equation
   9,353.72 : 12,907.68 = 5,373.92 : x
2. Step 2: Convert to fraction form
   9,353.72/12,907.68 = 5,373.92/x
3. Step 3: Cross multiply
   9,353.72x = 12,907.68 × 5,373.92
4. Step 4: Simplify right side
   9,353.72x = 69,364,839.71
5. Step 5: Solve for x
   x = 69,364,839.71/9,353.72
6. Step 6: Final answer
   x = 7,415.75