Finding the Fourth Proportional to 9,002.01, 12,421.83 and 5,226.42

Step by Step Solution

1. Step 1: Write the proportion equation
   9,002.01 : 12,421.83 = 5,226.42 : x
2. Step 2: Convert to fraction form
   9,002.01/12,421.83 = 5,226.42/x
3. Step 3: Cross multiply
   9,002.01x = 12,421.83 × 5,226.42
4. Step 4: Simplify right side
   9,002.01x = 64,921,700.75
5. Step 5: Solve for x
   x = 64,921,700.75/9,002.01
6. Step 6: Final answer
   x = 7,211.91