Finding the Fourth Proportional to 23,511.60, 32,445.72 and 13,440.24

Step by Step Solution

1. Step 1: Write the proportion equation
   23,511.60 : 32,445.72 = 13,440.24 : x
2. Step 2: Convert to fraction form
   23,511.60/32,445.72 = 13,440.24/x
3. Step 3: Cross multiply
   23,511.60x = 32,445.72 × 13,440.24
4. Step 4: Simplify right side
   23,511.60x = 436,078,263.77
5. Step 5: Solve for x
   x = 436,078,263.77/23,511.60
6. Step 6: Final answer
   x = 18,547.37