Finding the Fourth Proportional to 23,150.32, 31,947.34 and 12,539.96

Step by Step Solution

1. Step 1: Write the proportion equation
   23,150.32 : 31,947.34 = 12,539.96 : x
2. Step 2: Convert to fraction form
   23,150.32/31,947.34 = 12,539.96/x
3. Step 3: Cross multiply
   23,150.32x = 31,947.34 × 12,539.96
4. Step 4: Simplify right side
   23,150.32x = 400,618,365.71
5. Step 5: Solve for x
   x = 400,618,365.71/23,150.32
6. Step 6: Final answer
   x = 17,305.09