Finding the Fourth Proportional to 9,350.56, 12,903.52 and 5,158.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,350.56 : 12,903.52 = 5,158.72 : x
2. Step 2: Convert to fraction form
   9,350.56/12,903.52 = 5,158.72/x
3. Step 3: Cross multiply
   9,350.56x = 12,903.52 × 5,158.72
4. Step 4: Simplify right side
   9,350.56x = 66,565,646.69
5. Step 5: Solve for x
   x = 66,565,646.69/9,350.56
6. Step 6: Final answer
   x = 7,118.89