Finding the Fourth Proportional to 8,789.64, 12,133.06 and 5,433

Step by Step Solution

1. Step 1: Write the proportion equation
   8,789.64 : 12,133.06 = 5,433 : x
2. Step 2: Convert to fraction form
   8,789.64/12,133.06 = 5,433/x
3. Step 3: Cross multiply
   8,789.64x = 12,133.06 × 5,433
4. Step 4: Simplify right side
   8,789.64x = 65,918,914.98
5. Step 5: Solve for x
   x = 65,918,914.98/8,789.64
6. Step 6: Final answer
   x = 7,499.61