Finding the Fourth Proportional to 9,730.76, 14,570.94 and 7,087.40

Step by Step Solution

1. Step 1: Write the proportion equation
   9,730.76 : 14,570.94 = 7,087.40 : x
2. Step 2: Convert to fraction form
   9,730.76/14,570.94 = 7,087.40/x
3. Step 3: Cross multiply
   9,730.76x = 14,570.94 × 7,087.40
4. Step 4: Simplify right side
   9,730.76x = 103,270,080.16
5. Step 5: Solve for x
   x = 103,270,080.16/9,730.76
6. Step 6: Final answer
   x = 10,612.75