Finding the Fourth Proportional to 9,935.89, 13,711.34 and 5,459.42

Step by Step Solution

1. Step 1: Write the proportion equation
   9,935.89 : 13,711.34 = 5,459.42 : x
2. Step 2: Convert to fraction form
   9,935.89/13,711.34 = 5,459.42/x
3. Step 3: Cross multiply
   9,935.89x = 13,711.34 × 5,459.42
4. Step 4: Simplify right side
   9,935.89x = 74,856,011.75
5. Step 5: Solve for x
   x = 74,856,011.75/9,935.89
6. Step 6: Final answer
   x = 7,533.90