Finding the Fourth Proportional to 23,688.62, 32,690.06 and 13,078.32

Step by Step Solution

1. Step 1: Write the proportion equation
   23,688.62 : 32,690.06 = 13,078.32 : x
2. Step 2: Convert to fraction form
   23,688.62/32,690.06 = 13,078.32/x
3. Step 3: Cross multiply
   23,688.62x = 32,690.06 × 13,078.32
4. Step 4: Simplify right side
   23,688.62x = 427,531,065.50
5. Step 5: Solve for x
   x = 427,531,065.50/23,688.62
6. Step 6: Final answer
   x = 18,047.95