Finding the Fourth Proportional to 10,080.78, 13,912.62 and 5,604.96

Step by Step Solution

1. Step 1: Write the proportion equation
   10,080.78 : 13,912.62 = 5,604.96 : x
2. Step 2: Convert to fraction form
   10,080.78/13,912.62 = 5,604.96/x
3. Step 3: Cross multiply
   10,080.78x = 13,912.62 × 5,604.96
4. Step 4: Simplify right side
   10,080.78x = 77,979,678.60
5. Step 5: Solve for x
   x = 77,979,678.60/10,080.78
6. Step 6: Final answer
   x = 7,735.48