Finding the Fourth Proportional to 9,909.72, 13,675.32 and 5,433.38

Step by Step Solution

1. Step 1: Write the proportion equation
   9,909.72 : 13,675.32 = 5,433.38 : x
2. Step 2: Convert to fraction form
   9,909.72/13,675.32 = 5,433.38/x
3. Step 3: Cross multiply
   9,909.72x = 13,675.32 × 5,433.38
4. Step 4: Simplify right side
   9,909.72x = 74,303,210.18
5. Step 5: Solve for x
   x = 74,303,210.18/9,909.72
6. Step 6: Final answer
   x = 7,498.01