Finding the Fourth Proportional to 9,013.56, 12,437.86 and 5,236.63

Step by Step Solution

1. Step 1: Write the proportion equation
   9,013.56 : 12,437.86 = 5,236.63 : x
2. Step 2: Convert to fraction form
   9,013.56/12,437.86 = 5,236.63/x
3. Step 3: Cross multiply
   9,013.56x = 12,437.86 × 5,236.63
4. Step 4: Simplify right side
   9,013.56x = 65,132,470.81
5. Step 5: Solve for x
   x = 65,132,470.81/9,013.56
6. Step 6: Final answer
   x = 7,226.05