Finding the Fourth Proportional to 9,038.79, 12,474.27 and 5,211.68

Step by Step Solution

1. Step 1: Write the proportion equation
   9,038.79 : 12,474.27 = 5,211.68 : x
2. Step 2: Convert to fraction form
   9,038.79/12,474.27 = 5,211.68/x
3. Step 3: Cross multiply
   9,038.79x = 12,474.27 × 5,211.68
4. Step 4: Simplify right side
   9,038.79x = 65,011,841.10
5. Step 5: Solve for x
   x = 65,011,841.10/9,038.79
6. Step 6: Final answer
   x = 7,192.54