Finding the Fourth Proportional to 9,370.57, 12,931.56 and 5,337.86

Step by Step Solution

1. Step 1: Write the proportion equation
   9,370.57 : 12,931.56 = 5,337.86 : x
2. Step 2: Convert to fraction form
   9,370.57/12,931.56 = 5,337.86/x
3. Step 3: Cross multiply
   9,370.57x = 12,931.56 × 5,337.86
4. Step 4: Simplify right side
   9,370.57x = 69,026,856.86
5. Step 5: Solve for x
   x = 69,026,856.86/9,370.57
6. Step 6: Final answer
   x = 7,366.35