Finding the Fourth Proportional to 23,522.16, 32,460.48 and 12,912

Step by Step Solution

1. Step 1: Write the proportion equation
   23,522.16 : 32,460.48 = 12,912 : x
2. Step 2: Convert to fraction form
   23,522.16/32,460.48 = 12,912/x
3. Step 3: Cross multiply
   23,522.16x = 32,460.48 × 12,912
4. Step 4: Simplify right side
   23,522.16x = 419,129,717.76
5. Step 5: Solve for x
   x = 419,129,717.76/23,522.16
6. Step 6: Final answer
   x = 17,818.50