Finding the Fourth Proportional to 23,117.92, 31,902.59 and 12,507.32

Step by Step Solution

1. Step 1: Write the proportion equation
   23,117.92 : 31,902.59 = 12,507.32 : x
2. Step 2: Convert to fraction form
   23,117.92/31,902.59 = 12,507.32/x
3. Step 3: Cross multiply
   23,117.92x = 31,902.59 × 12,507.32
4. Step 4: Simplify right side
   23,117.92x = 399,016,012.98
5. Step 5: Solve for x
   x = 399,016,012.98/23,117.92
6. Step 6: Final answer
   x = 17,260.03