Finding the Fourth Proportional to 23,588.16, 32,551.72 and 12,978.48

Step by Step Solution

1. Step 1: Write the proportion equation
   23,588.16 : 32,551.72 = 12,978.48 : x
2. Step 2: Convert to fraction form
   23,588.16/32,551.72 = 12,978.48/x
3. Step 3: Cross multiply
   23,588.16x = 32,551.72 × 12,978.48
4. Step 4: Simplify right side
   23,588.16x = 422,471,619.33
5. Step 5: Solve for x
   x = 422,471,619.33/23,588.16
6. Step 6: Final answer
   x = 17,910.33