Finding the Fourth Proportional to 9,150.95, 12,618.82 and 7,829.03

Step by Step Solution

1. Step 1: Write the proportion equation
   9,150.95 : 12,618.82 = 7,829.03 : x
2. Step 2: Convert to fraction form
   9,150.95/12,618.82 = 7,829.03/x
3. Step 3: Cross multiply
   9,150.95x = 12,618.82 × 7,829.03
4. Step 4: Simplify right side
   9,150.95x = 98,793,081.20
5. Step 5: Solve for x
   x = 98,793,081.20/9,150.95
6. Step 6: Final answer
   x = 10,795.94