Finding the Fourth Proportional to 9,478.01, 13,080.54 and 5,445.41

Step by Step Solution

1. Step 1: Write the proportion equation
   9,478.01 : 13,080.54 = 5,445.41 : x
2. Step 2: Convert to fraction form
   9,478.01/13,080.54 = 5,445.41/x
3. Step 3: Cross multiply
   9,478.01x = 13,080.54 × 5,445.41
4. Step 4: Simplify right side
   9,478.01x = 71,228,837.92
5. Step 5: Solve for x
   x = 71,228,837.92/9,478.01
6. Step 6: Final answer
   x = 7,515.17