Finding the Fourth Proportional to 22,608.21, 31,200.89 and 12,537.57

Step by Step Solution

1. Step 1: Write the proportion equation
   22,608.21 : 31,200.89 = 12,537.57 : x
2. Step 2: Convert to fraction form
   22,608.21/31,200.89 = 12,537.57/x
3. Step 3: Cross multiply
   22,608.21x = 31,200.89 × 12,537.57
4. Step 4: Simplify right side
   22,608.21x = 391,183,279.75
5. Step 5: Solve for x
   x = 391,183,279.75/22,608.21
6. Step 6: Final answer
   x = 17,302.71