Finding the Fourth Proportional to 9,229.31, 12,736.01 and 5,250.05

Step by Step Solution

1. Step 1: Write the proportion equation
   9,229.31 : 12,736.01 = 5,250.05 : x
2. Step 2: Convert to fraction form
   9,229.31/12,736.01 = 5,250.05/x
3. Step 3: Cross multiply
   9,229.31x = 12,736.01 × 5,250.05
4. Step 4: Simplify right side
   9,229.31x = 66,864,663.05
5. Step 5: Solve for x
   x = 66,864,663.05/9,229.31
6. Step 6: Final answer
   x = 7,244.82