Finding the Fourth Proportional to 22,659.16, 31,269.62 and 12,588.54

Step by Step Solution

1. Step 1: Write the proportion equation
   22,659.16 : 31,269.62 = 12,588.54 : x
2. Step 2: Convert to fraction form
   22,659.16/31,269.62 = 12,588.54/x
3. Step 3: Cross multiply
   22,659.16x = 31,269.62 × 12,588.54
4. Step 4: Simplify right side
   22,659.16x = 393,638,862.15
5. Step 5: Solve for x
   x = 393,638,862.15/22,659.16
6. Step 6: Final answer
   x = 17,372.17