Finding the Fourth Proportional to 9,479.94, 14,223.60 and 3,931.88

Step by Step Solution

1. Step 1: Write the proportion equation
   9,479.94 : 14,223.60 = 3,931.88 : x
2. Step 2: Convert to fraction form
   9,479.94/14,223.60 = 3,931.88/x
3. Step 3: Cross multiply
   9,479.94x = 14,223.60 × 3,931.88
4. Step 4: Simplify right side
   9,479.94x = 55,925,417.25
5. Step 5: Solve for x
   x = 55,925,417.25/9,479.94
6. Step 6: Final answer
   x = 5,899.35