Finding the Fourth Proportional to 9,089.01, 13,638.71 and 4,158.61

Step by Step Solution

1. Step 1: Write the proportion equation
   9,089.01 : 13,638.71 = 4,158.61 : x
2. Step 2: Convert to fraction form
   9,089.01/13,638.71 = 4,158.61/x
3. Step 3: Cross multiply
   9,089.01x = 13,638.71 × 4,158.61
4. Step 4: Simplify right side
   9,089.01x = 56,718,052.09
5. Step 5: Solve for x
   x = 56,718,052.09/9,089.01
6. Step 6: Final answer
   x = 6,240.29