Finding the Fourth Proportional to 9,315.05, 12,851.60 and 5,537.00

Step by Step Solution

1. Step 1: Write the proportion equation
   9,315.05 : 12,851.60 = 5,537.00 : x
2. Step 2: Convert to fraction form
   9,315.05/12,851.60 = 5,537.00/x
3. Step 3: Cross multiply
   9,315.05x = 12,851.60 × 5,537.00
4. Step 4: Simplify right side
   9,315.05x = 71,159,313.64
5. Step 5: Solve for x
   x = 71,159,313.64/9,315.05
6. Step 6: Final answer
   x = 7,639.18