Finding the Fourth Proportional to 9,050.22, 12,489.55 and 5,071.25

Step by Step Solution

1. Step 1: Write the proportion equation
   9,050.22 : 12,489.55 = 5,071.25 : x
2. Step 2: Convert to fraction form
   9,050.22/12,489.55 = 5,071.25/x
3. Step 3: Cross multiply
   9,050.22x = 12,489.55 × 5,071.25
4. Step 4: Simplify right side
   9,050.22x = 63,337,648.98
5. Step 5: Solve for x
   x = 63,337,648.98/9,050.22
6. Step 6: Final answer
   x = 6,998.47