Finding the Fourth Proportional to 9,700.50, 13,386.69 and 5,284.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,700.50 : 13,386.69 = 5,284.50 : x
2. Step 2: Convert to fraction form
   9,700.50/13,386.69 = 5,284.50/x
3. Step 3: Cross multiply
   9,700.50x = 13,386.69 × 5,284.50
4. Step 4: Simplify right side
   9,700.50x = 70,741,963.31
5. Step 5: Solve for x
   x = 70,741,963.31/9,700.50
6. Step 6: Final answer
   x = 7,292.61