Finding the Fourth Proportional to 9,856.03, 14,790.39 and 3,931.91

Step by Step Solution

1. Step 1: Write the proportion equation
   9,856.03 : 14,790.39 = 3,931.91 : x
2. Step 2: Convert to fraction form
   9,856.03/14,790.39 = 3,931.91/x
3. Step 3: Cross multiply
   9,856.03x = 14,790.39 × 3,931.91
4. Step 4: Simplify right side
   9,856.03x = 58,154,408.39
5. Step 5: Solve for x
   x = 58,154,408.39/9,856.03
6. Step 6: Final answer
   x = 5,900.39