Finding the Fourth Proportional to 9,477.45, 13,080.06 and 5,445.53

Step by Step Solution

1. Step 1: Write the proportion equation
   9,477.45 : 13,080.06 = 5,445.53 : x
2. Step 2: Convert to fraction form
   9,477.45/13,080.06 = 5,445.53/x
3. Step 3: Cross multiply
   9,477.45x = 13,080.06 × 5,445.53
4. Step 4: Simplify right side
   9,477.45x = 71,227,793.73
5. Step 5: Solve for x
   x = 71,227,793.73/9,477.45
6. Step 6: Final answer
   x = 7,515.50