Finding the Fourth Proportional to 23,300.48, 32,155.03 and 12,690.11

Step by Step Solution

1. Step 1: Write the proportion equation
   23,300.48 : 32,155.03 = 12,690.11 : x
2. Step 2: Convert to fraction form
   23,300.48/32,155.03 = 12,690.11/x
3. Step 3: Cross multiply
   23,300.48x = 32,155.03 × 12,690.11
4. Step 4: Simplify right side
   23,300.48x = 408,050,763.03
5. Step 5: Solve for x
   x = 408,050,763.03/23,300.48
6. Step 6: Final answer
   x = 17,512.55