Finding the Fourth Proportional to 9,457.53, 13,053.69 and 5,478

Step by Step Solution

1. Step 1: Write the proportion equation
   9,457.53 : 13,053.69 = 5,478 : x
2. Step 2: Convert to fraction form
   9,457.53/13,053.69 = 5,478/x
3. Step 3: Cross multiply
   9,457.53x = 13,053.69 × 5,478
4. Step 4: Simplify right side
   9,457.53x = 71,508,113.82
5. Step 5: Solve for x
   x = 71,508,113.82/9,457.53
6. Step 6: Final answer
   x = 7,560.97