Finding the Fourth Proportional to 10,495.72, 15,744.54 and 5,298.28

Step by Step Solution

1. Step 1: Write the proportion equation
   10,495.72 : 15,744.54 = 5,298.28 : x
2. Step 2: Convert to fraction form
   10,495.72/15,744.54 = 5,298.28/x
3. Step 3: Cross multiply
   10,495.72x = 15,744.54 × 5,298.28
4. Step 4: Simplify right side
   10,495.72x = 83,418,981.39
5. Step 5: Solve for x
   x = 83,418,981.39/10,495.72
6. Step 6: Final answer
   x = 7,947.90