Finding the Fourth Proportional to 9,313.89, 12,852.91 and 5,122.14

Step by Step Solution

1. Step 1: Write the proportion equation
   9,313.89 : 12,852.91 = 5,122.14 : x
2. Step 2: Convert to fraction form
   9,313.89/12,852.91 = 5,122.14/x
3. Step 3: Cross multiply
   9,313.89x = 12,852.91 × 5,122.14
4. Step 4: Simplify right side
   9,313.89x = 65,834,404.43
5. Step 5: Solve for x
   x = 65,834,404.43/9,313.89
6. Step 6: Final answer
   x = 7,068.41