Finding the Fourth Proportional to 9,955.37, 13,737.91 and 5,479

Step by Step Solution

1. Step 1: Write the proportion equation
   9,955.37 : 13,737.91 = 5,479 : x
2. Step 2: Convert to fraction form
   9,955.37/13,737.91 = 5,479/x
3. Step 3: Cross multiply
   9,955.37x = 13,737.91 × 5,479
4. Step 4: Simplify right side
   9,955.37x = 75,270,008.89
5. Step 5: Solve for x
   x = 75,270,008.89/9,955.37
6. Step 6: Final answer
   x = 7,560.74