Finding the Fourth Proportional to 10,080.64, 13,910.90 and 5,604.18

Step by Step Solution

1. Step 1: Write the proportion equation
   10,080.64 : 13,910.90 = 5,604.18 : x
2. Step 2: Convert to fraction form
   10,080.64/13,910.90 = 5,604.18/x
3. Step 3: Cross multiply
   10,080.64x = 13,910.90 × 5,604.18
4. Step 4: Simplify right side
   10,080.64x = 77,959,187.56
5. Step 5: Solve for x
   x = 77,959,187.56/10,080.64
6. Step 6: Final answer
   x = 7,733.56