Finding the Fourth Proportional to 23,300.44, 32,153.46 and 12,690.16

Step by Step Solution

1. Step 1: Write the proportion equation
   23,300.44 : 32,153.46 = 12,690.16 : x
2. Step 2: Convert to fraction form
   23,300.44/32,153.46 = 12,690.16/x
3. Step 3: Cross multiply
   23,300.44x = 32,153.46 × 12,690.16
4. Step 4: Simplify right side
   23,300.44x = 408,032,551.95
5. Step 5: Solve for x
   x = 408,032,551.95/23,300.44
6. Step 6: Final answer
   x = 17,511.80