Finding the Fourth Proportional to 10,258.80, 14,064.80 and 10,071.96

Step by Step Solution

1. Step 1: Write the proportion equation
   10,258.80 : 14,064.80 = 10,071.96 : x
2. Step 2: Convert to fraction form
   10,258.80/14,064.80 = 10,071.96/x
3. Step 3: Cross multiply
   10,258.80x = 14,064.80 × 10,071.96
4. Step 4: Simplify right side
   10,258.80x = 141,660,103.01
5. Step 5: Solve for x
   x = 141,660,103.01/10,258.80
6. Step 6: Final answer
   x = 13,808.64