Finding the Fourth Proportional to 9,474.61, 14,205.83 and 3,931.78

Step by Step Solution

1. Step 1: Write the proportion equation
   9,474.61 : 14,205.83 = 3,931.78 : x
2. Step 2: Convert to fraction form
   9,474.61/14,205.83 = 3,931.78/x
3. Step 3: Cross multiply
   9,474.61x = 14,205.83 × 3,931.78
4. Step 4: Simplify right side
   9,474.61x = 55,854,127.25
5. Step 5: Solve for x
   x = 55,854,127.25/9,474.61
6. Step 6: Final answer
   x = 5,895.14