Finding the Fourth Proportional to 9,457.34, 13,049.15 and 5,478.22

Step by Step Solution

1. Step 1: Write the proportion equation
   9,457.34 : 13,049.15 = 5,478.22 : x
2. Step 2: Convert to fraction form
   9,457.34/13,049.15 = 5,478.22/x
3. Step 3: Cross multiply
   9,457.34x = 13,049.15 × 5,478.22
4. Step 4: Simplify right side
   9,457.34x = 71,486,095.59
5. Step 5: Solve for x
   x = 71,486,095.59/9,457.34
6. Step 6: Final answer
   x = 7,558.79