Finding the Fourth Proportional to 10,072.88, 13,898.96 and 5,596.56

Step by Step Solution

1. Step 1: Write the proportion equation
   10,072.88 : 13,898.96 = 5,596.56 : x
2. Step 2: Convert to fraction form
   10,072.88/13,898.96 = 5,596.56/x
3. Step 3: Cross multiply
   10,072.88x = 13,898.96 × 5,596.56
4. Step 4: Simplify right side
   10,072.88x = 77,786,363.58
5. Step 5: Solve for x
   x = 77,786,363.58/10,072.88
6. Step 6: Final answer
   x = 7,722.36