Finding the Fourth Proportional to 9,210.07, 12,709.56 and 5,433.40

Step by Step Solution

1. Step 1: Write the proportion equation
   9,210.07 : 12,709.56 = 5,433.40 : x
2. Step 2: Convert to fraction form
   9,210.07/12,709.56 = 5,433.40/x
3. Step 3: Cross multiply
   9,210.07x = 12,709.56 × 5,433.40
4. Step 4: Simplify right side
   9,210.07x = 69,056,123.30
5. Step 5: Solve for x
   x = 69,056,123.30/9,210.07
6. Step 6: Final answer
   x = 7,497.89