Finding the Fourth Proportional to 9,337.71, 12,886.10 and 5,358.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,337.71 : 12,886.10 = 5,358.72 : x
2. Step 2: Convert to fraction form
   9,337.71/12,886.10 = 5,358.72/x
3. Step 3: Cross multiply
   9,337.71x = 12,886.10 × 5,358.72
4. Step 4: Simplify right side
   9,337.71x = 69,052,910.57
5. Step 5: Solve for x
   x = 69,052,910.57/9,337.71
6. Step 6: Final answer
   x = 7,395.06