Finding the Fourth Proportional to 9,012.75, 12,437.60 and 5,475.29

Step by Step Solution

1. Step 1: Write the proportion equation
   9,012.75 : 12,437.60 = 5,475.29 : x
2. Step 2: Convert to fraction form
   9,012.75/12,437.60 = 5,475.29/x
3. Step 3: Cross multiply
   9,012.75x = 12,437.60 × 5,475.29
4. Step 4: Simplify right side
   9,012.75x = 68,099,377.34
5. Step 5: Solve for x
   x = 68,099,377.34/9,012.75
6. Step 6: Final answer
   x = 7,555.89