Finding the Fourth Proportional to 9,045.55, 12,485.57 and 5,510.51

Step by Step Solution

1. Step 1: Write the proportion equation
   9,045.55 : 12,485.57 = 5,510.51 : x
2. Step 2: Convert to fraction form
   9,045.55/12,485.57 = 5,510.51/x
3. Step 3: Cross multiply
   9,045.55x = 12,485.57 × 5,510.51
4. Step 4: Simplify right side
   9,045.55x = 68,801,768.36
5. Step 5: Solve for x
   x = 68,801,768.36/9,045.55
6. Step 6: Final answer
   x = 7,606.15