Finding the Fourth Proportional to 23,019.23, 31,769.25 and 12,948.05

Step by Step Solution

1. Step 1: Write the proportion equation
   23,019.23 : 31,769.25 = 12,948.05 : x
2. Step 2: Convert to fraction form
   23,019.23/31,769.25 = 12,948.05/x
3. Step 3: Cross multiply
   23,019.23x = 31,769.25 × 12,948.05
4. Step 4: Simplify right side
   23,019.23x = 411,349,837.46
5. Step 5: Solve for x
   x = 411,349,837.46/23,019.23
6. Step 6: Final answer
   x = 17,869.83