Finding the Fourth Proportional to 9,955.33, 13,738.42 and 5,478.96

Step by Step Solution

1. Step 1: Write the proportion equation
   9,955.33 : 13,738.42 = 5,478.96 : x
2. Step 2: Convert to fraction form
   9,955.33/13,738.42 = 5,478.96/x
3. Step 3: Cross multiply
   9,955.33x = 13,738.42 × 5,478.96
4. Step 4: Simplify right side
   9,955.33x = 75,272,253.64
5. Step 5: Solve for x
   x = 75,272,253.64/9,955.33
6. Step 6: Final answer
   x = 7,561.00