Finding the Fourth Proportional to 9,071.29, 12,517.50 and 5,714.79

Step by Step Solution

1. Step 1: Write the proportion equation
   9,071.29 : 12,517.50 = 5,714.79 : x
2. Step 2: Convert to fraction form
   9,071.29/12,517.50 = 5,714.79/x
3. Step 3: Cross multiply
   9,071.29x = 12,517.50 × 5,714.79
4. Step 4: Simplify right side
   9,071.29x = 71,534,883.83
5. Step 5: Solve for x
   x = 71,534,883.83/9,071.29
6. Step 6: Final answer
   x = 7,885.86