Finding the Fourth Proportional to 9,050.61, 13,637.73 and 7,443.21

Step by Step Solution

1. Step 1: Write the proportion equation
   9,050.61 : 13,637.73 = 7,443.21 : x
2. Step 2: Convert to fraction form
   9,050.61/13,637.73 = 7,443.21/x
3. Step 3: Cross multiply
   9,050.61x = 13,637.73 × 7,443.21
4. Step 4: Simplify right side
   9,050.61x = 101,508,488.31
5. Step 5: Solve for x
   x = 101,508,488.31/9,050.61
6. Step 6: Final answer
   x = 11,215.65