Finding the Fourth Proportional to 9,210.16, 12,708.93 and 5,434.48

Step by Step Solution

1. Step 1: Write the proportion equation
   9,210.16 : 12,708.93 = 5,434.48 : x
2. Step 2: Convert to fraction form
   9,210.16/12,708.93 = 5,434.48/x
3. Step 3: Cross multiply
   9,210.16x = 12,708.93 × 5,434.48
4. Step 4: Simplify right side
   9,210.16x = 69,066,425.91
5. Step 5: Solve for x
   x = 69,066,425.91/9,210.16
6. Step 6: Final answer
   x = 7,498.94