Finding the Fourth Proportional to 23,580.40, 32,541.36 and 12,970

Step by Step Solution

1. Step 1: Write the proportion equation
   23,580.40 : 32,541.36 = 12,970 : x
2. Step 2: Convert to fraction form
   23,580.40/32,541.36 = 12,970/x
3. Step 3: Cross multiply
   23,580.40x = 32,541.36 × 12,970
4. Step 4: Simplify right side
   23,580.40x = 422,061,439.20
5. Step 5: Solve for x
   x = 422,061,439.20/23,580.40
6. Step 6: Final answer
   x = 17,898.82