Finding the Fourth Proportional to 7,411.42, 10,222.23 and 5,429.98

Step by Step Solution

1. Step 1: Write the proportion equation
   7,411.42 : 10,222.23 = 5,429.98 : x
2. Step 2: Convert to fraction form
   7,411.42/10,222.23 = 5,429.98/x
3. Step 3: Cross multiply
   7,411.42x = 10,222.23 × 5,429.98
4. Step 4: Simplify right side
   7,411.42x = 55,506,504.46
5. Step 5: Solve for x
   x = 55,506,504.46/7,411.42
6. Step 6: Final answer
   x = 7,489.32