Finding the Fourth Proportional to 23,109.19, 31,890.69 and 12,498.82

Step by Step Solution

1. Step 1: Write the proportion equation
   23,109.19 : 31,890.69 = 12,498.82 : x
2. Step 2: Convert to fraction form
   23,109.19/31,890.69 = 12,498.82/x
3. Step 3: Cross multiply
   23,109.19x = 31,890.69 × 12,498.82
4. Step 4: Simplify right side
   23,109.19x = 398,595,914.26
5. Step 5: Solve for x
   x = 398,595,914.26/23,109.19
6. Step 6: Final answer
   x = 17,248.37