Finding the Fourth Proportional to 9,907.55, 13,673.28 and 5,432.16

Step by Step Solution

1. Step 1: Write the proportion equation
   9,907.55 : 13,673.28 = 5,432.16 : x
2. Step 2: Convert to fraction form
   9,907.55/13,673.28 = 5,432.16/x
3. Step 3: Cross multiply
   9,907.55x = 13,673.28 × 5,432.16
4. Step 4: Simplify right side
   9,907.55x = 74,275,413.78
5. Step 5: Solve for x
   x = 74,275,413.78/9,907.55
6. Step 6: Final answer
   x = 7,496.85