Finding the Fourth Proportional to 10,499.50, 15,744.12 and 4,948.12

Step by Step Solution

1. Step 1: Write the proportion equation
   10,499.50 : 15,744.12 = 4,948.12 : x
2. Step 2: Convert to fraction form
   10,499.50/15,744.12 = 4,948.12/x
3. Step 3: Cross multiply
   10,499.50x = 15,744.12 × 4,948.12
4. Step 4: Simplify right side
   10,499.50x = 77,903,795.05
5. Step 5: Solve for x
   x = 77,903,795.05/10,499.50
6. Step 6: Final answer
   x = 7,419.76