Finding the Fourth Proportional to 10,456.48, 15,673.76 and 4,905.16

Step by Step Solution

1. Step 1: Write the proportion equation
   10,456.48 : 15,673.76 = 4,905.16 : x
2. Step 2: Convert to fraction form
   10,456.48/15,673.76 = 4,905.16/x
3. Step 3: Cross multiply
   10,456.48x = 15,673.76 × 4,905.16
4. Step 4: Simplify right side
   10,456.48x = 76,882,300.60
5. Step 5: Solve for x
   x = 76,882,300.60/10,456.48
6. Step 6: Final answer
   x = 7,352.60