Finding the Fourth Proportional to 23,238.60, 32,068.80 and 12,628.50

Step by Step Solution

1. Step 1: Write the proportion equation
   23,238.60 : 32,068.80 = 12,628.50 : x
2. Step 2: Convert to fraction form
   23,238.60/32,068.80 = 12,628.50/x
3. Step 3: Cross multiply
   23,238.60x = 32,068.80 × 12,628.50
4. Step 4: Simplify right side
   23,238.60x = 404,980,840.80
5. Step 5: Solve for x
   x = 404,980,840.80/23,238.60
6. Step 6: Final answer
   x = 17,427.08