Finding the Fourth Proportional to 10,268.84, 14,171 and 5,553.12

Step by Step Solution

1. Step 1: Write the proportion equation
   10,268.84 : 14,171 = 5,553.12 : x
2. Step 2: Convert to fraction form
   10,268.84/14,171 = 5,553.12/x
3. Step 3: Cross multiply
   10,268.84x = 14,171 × 5,553.12
4. Step 4: Simplify right side
   10,268.84x = 78,693,263.52
5. Step 5: Solve for x
   x = 78,693,263.52/10,268.84
6. Step 6: Final answer
   x = 7,663.31