Finding the Fourth Proportional to 9,468.57, 13,066.62 and 5,491.98

Step by Step Solution

1. Step 1: Write the proportion equation
   9,468.57 : 13,066.62 = 5,491.98 : x
2. Step 2: Convert to fraction form
   9,468.57/13,066.62 = 5,491.98/x
3. Step 3: Cross multiply
   9,468.57x = 13,066.62 × 5,491.98
4. Step 4: Simplify right side
   9,468.57x = 71,761,615.71
5. Step 5: Solve for x
   x = 71,761,615.71/9,468.57
6. Step 6: Final answer
   x = 7,578.93