Finding the Fourth Proportional to 23,870.89, 32,942.06 and 13,260.70

Step by Step Solution

1. Step 1: Write the proportion equation
   23,870.89 : 32,942.06 = 13,260.70 : x
2. Step 2: Convert to fraction form
   23,870.89/32,942.06 = 13,260.70/x
3. Step 3: Cross multiply
   23,870.89x = 32,942.06 × 13,260.70
4. Step 4: Simplify right side
   23,870.89x = 436,834,775.04
5. Step 5: Solve for x
   x = 436,834,775.04/23,870.89
6. Step 6: Final answer
   x = 18,299.89