Finding the Fourth Proportional to 9,144.53, 12,619.42 and 4,952.78

Step by Step Solution

1. Step 1: Write the proportion equation
   9,144.53 : 12,619.42 = 4,952.78 : x
2. Step 2: Convert to fraction form
   9,144.53/12,619.42 = 4,952.78/x
3. Step 3: Cross multiply
   9,144.53x = 12,619.42 × 4,952.78
4. Step 4: Simplify right side
   9,144.53x = 62,501,210.99
5. Step 5: Solve for x
   x = 62,501,210.99/9,144.53
6. Step 6: Final answer
   x = 6,834.82