Finding the Fourth Proportional to 12,923.60, 17,834.73 and 7,618.10

Step by Step Solution

1. Step 1: Write the proportion equation
   12,923.60 : 17,834.73 = 7,618.10 : x
2. Step 2: Convert to fraction form
   12,923.60/17,834.73 = 7,618.10/x
3. Step 3: Cross multiply
   12,923.60x = 17,834.73 × 7,618.10
4. Step 4: Simplify right side
   12,923.60x = 135,866,756.61
5. Step 5: Solve for x
   x = 135,866,756.61/12,923.60
6. Step 6: Final answer
   x = 10,513.07