Finding the Fourth Proportional to 9,336.06, 12,885.06 and 5,358.75

Step by Step Solution

1. Step 1: Write the proportion equation
   9,336.06 : 12,885.06 = 5,358.75 : x
2. Step 2: Convert to fraction form
   9,336.06/12,885.06 = 5,358.75/x
3. Step 3: Cross multiply
   9,336.06x = 12,885.06 × 5,358.75
4. Step 4: Simplify right side
   9,336.06x = 69,047,815.28
5. Step 5: Solve for x
   x = 69,047,815.28/9,336.06
6. Step 6: Final answer
   x = 7,395.82