Finding the Fourth Proportional to 9,457.00, 13,046.78 and 5,421.58

Step by Step Solution

1. Step 1: Write the proportion equation
   9,457.00 : 13,046.78 = 5,421.58 : x
2. Step 2: Convert to fraction form
   9,457.00/13,046.78 = 5,421.58/x
3. Step 3: Cross multiply
   9,457.00x = 13,046.78 × 5,421.58
4. Step 4: Simplify right side
   9,457.00x = 70,734,142.45
5. Step 5: Solve for x
   x = 70,734,142.45/9,457.00
6. Step 6: Final answer
   x = 7,479.56