Finding the Fourth Proportional to 9,294.69, 12,823.53 and 5,312.99

Step by Step Solution

1. Step 1: Write the proportion equation
   9,294.69 : 12,823.53 = 5,312.99 : x
2. Step 2: Convert to fraction form
   9,294.69/12,823.53 = 5,312.99/x
3. Step 3: Cross multiply
   9,294.69x = 12,823.53 × 5,312.99
4. Step 4: Simplify right side
   9,294.69x = 68,131,222.54
5. Step 5: Solve for x
   x = 68,131,222.54/9,294.69
6. Step 6: Final answer
   x = 7,330.12