Finding the Fourth Proportional to 9,395.58, 12,967.28 and 5,415.91

Step by Step Solution

1. Step 1: Write the proportion equation
   9,395.58 : 12,967.28 = 5,415.91 : x
2. Step 2: Convert to fraction form
   9,395.58/12,967.28 = 5,415.91/x
3. Step 3: Cross multiply
   9,395.58x = 12,967.28 × 5,415.91
4. Step 4: Simplify right side
   9,395.58x = 70,229,621.42
5. Step 5: Solve for x
   x = 70,229,621.42/9,395.58
6. Step 6: Final answer
   x = 7,474.75