Finding the Fourth Proportional to 9,064.98, 12,517.67 and 5,713.40

Step by Step Solution

1. Step 1: Write the proportion equation
   9,064.98 : 12,517.67 = 5,713.40 : x
2. Step 2: Convert to fraction form
   9,064.98/12,517.67 = 5,713.40/x
3. Step 3: Cross multiply
   9,064.98x = 12,517.67 × 5,713.40
4. Step 4: Simplify right side
   9,064.98x = 71,518,501.36
5. Step 5: Solve for x
   x = 71,518,501.36/9,064.98
6. Step 6: Final answer
   x = 7,889.54