Finding the Fourth Proportional to 9,210.69, 12,710.25 and 5,434.02

Step by Step Solution

1. Step 1: Write the proportion equation
   9,210.69 : 12,710.25 = 5,434.02 : x
2. Step 2: Convert to fraction form
   9,210.69/12,710.25 = 5,434.02/x
3. Step 3: Cross multiply
   9,210.69x = 12,710.25 × 5,434.02
4. Step 4: Simplify right side
   9,210.69x = 69,067,752.71
5. Step 5: Solve for x
   x = 69,067,752.71/9,210.69
6. Step 6: Final answer
   x = 7,498.65