Finding the Fourth Proportional to 9,211.35, 12,711.86 and 5,435.43

Step by Step Solution

1. Step 1: Write the proportion equation
   9,211.35 : 12,711.86 = 5,435.43 : x
2. Step 2: Convert to fraction form
   9,211.35/12,711.86 = 5,435.43/x
3. Step 3: Cross multiply
   9,211.35x = 12,711.86 × 5,435.43
4. Step 4: Simplify right side
   9,211.35x = 69,094,398.02
5. Step 5: Solve for x
   x = 69,094,398.02/9,211.35
6. Step 6: Final answer
   x = 7,501.01