Finding the Fourth Proportional to 22,532.10, 31,091.56 and 12,459.16

Step by Step Solution

1. Step 1: Write the proportion equation
   22,532.10 : 31,091.56 = 12,459.16 : x
2. Step 2: Convert to fraction form
   22,532.10/31,091.56 = 12,459.16/x
3. Step 3: Cross multiply
   22,532.10x = 31,091.56 × 12,459.16
4. Step 4: Simplify right side
   22,532.10x = 387,374,728.41
5. Step 5: Solve for x
   x = 387,374,728.41/22,532.10
6. Step 6: Final answer
   x = 17,192.13