Finding the Fourth Proportional to 23,071.68, 31,838.90 and 12,461.31

Step by Step Solution

1. Step 1: Write the proportion equation
   23,071.68 : 31,838.90 = 12,461.31 : x
2. Step 2: Convert to fraction form
   23,071.68/31,838.90 = 12,461.31/x
3. Step 3: Cross multiply
   23,071.68x = 31,838.90 × 12,461.31
4. Step 4: Simplify right side
   23,071.68x = 396,754,340.65
5. Step 5: Solve for x
   x = 396,754,340.65/23,071.68
6. Step 6: Final answer
   x = 17,196.60