Finding the Fourth Proportional to 9,434.34, 13,019.76 and 5,242.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,434.34 : 13,019.76 = 5,242.50 : x
2. Step 2: Convert to fraction form
   9,434.34/13,019.76 = 5,242.50/x
3. Step 3: Cross multiply
   9,434.34x = 13,019.76 × 5,242.50
4. Step 4: Simplify right side
   9,434.34x = 68,256,091.80
5. Step 5: Solve for x
   x = 68,256,091.80/9,434.34
6. Step 6: Final answer
   x = 7,234.86