Finding the Fourth Proportional to 9,913.46, 13,680.98 and 5,437.38

Step by Step Solution

1. Step 1: Write the proportion equation
   9,913.46 : 13,680.98 = 5,437.38 : x
2. Step 2: Convert to fraction form
   9,913.46/13,680.98 = 5,437.38/x
3. Step 3: Cross multiply
   9,913.46x = 13,680.98 × 5,437.38
4. Step 4: Simplify right side
   9,913.46x = 74,388,687.03
5. Step 5: Solve for x
   x = 74,388,687.03/9,913.46
6. Step 6: Final answer
   x = 7,503.81