Finding the Fourth Proportional to 9,012.56, 12,438.24 and 5,476.08

Step by Step Solution

1. Step 1: Write the proportion equation
   9,012.56 : 12,438.24 = 5,476.08 : x
2. Step 2: Convert to fraction form
   9,012.56/12,438.24 = 5,476.08/x
3. Step 3: Cross multiply
   9,012.56x = 12,438.24 × 5,476.08
4. Step 4: Simplify right side
   9,012.56x = 68,112,797.30
5. Step 5: Solve for x
   x = 68,112,797.30/9,012.56
6. Step 6: Final answer
   x = 7,557.54