Finding the Fourth Proportional to 23,118.84, 31,904.15 and 12,508.45

Step by Step Solution

1. Step 1: Write the proportion equation
   23,118.84 : 31,904.15 = 12,508.45 : x
2. Step 2: Convert to fraction form
   23,118.84/31,904.15 = 12,508.45/x
3. Step 3: Cross multiply
   23,118.84x = 31,904.15 × 12,508.45
4. Step 4: Simplify right side
   23,118.84x = 399,071,322.76
5. Step 5: Solve for x
   x = 399,071,322.76/23,118.84
6. Step 6: Final answer
   x = 17,261.74