Finding the Fourth Proportional to 9,434.56, 13,019.52 and 5,242.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,434.56 : 13,019.52 = 5,242.72 : x
2. Step 2: Convert to fraction form
   9,434.56/13,019.52 = 5,242.72/x
3. Step 3: Cross multiply
   9,434.56x = 13,019.52 × 5,242.72
4. Step 4: Simplify right side
   9,434.56x = 68,257,697.89
5. Step 5: Solve for x
   x = 68,257,697.89/9,434.56
6. Step 6: Final answer
   x = 7,234.86