Finding the Fourth Proportional to 10,288.56, 15,423.72 and 4,948.62

Step by Step Solution

1. Step 1: Write the proportion equation
   10,288.56 : 15,423.72 = 4,948.62 : x
2. Step 2: Convert to fraction form
   10,288.56/15,423.72 = 4,948.62/x
3. Step 3: Cross multiply
   10,288.56x = 15,423.72 × 4,948.62
4. Step 4: Simplify right side
   10,288.56x = 76,326,129.27
5. Step 5: Solve for x
   x = 76,326,129.27/10,288.56
6. Step 6: Final answer
   x = 7,418.54