Finding the Fourth Proportional to 23,155.69, 31,954.88 and 12,545.32

Step by Step Solution

1. Step 1: Write the proportion equation
   23,155.69 : 31,954.88 = 12,545.32 : x
2. Step 2: Convert to fraction form
   23,155.69/31,954.88 = 12,545.32/x
3. Step 3: Cross multiply
   23,155.69x = 31,954.88 × 12,545.32
4. Step 4: Simplify right side
   23,155.69x = 400,883,972.66
5. Step 5: Solve for x
   x = 400,883,972.66/23,155.69
6. Step 6: Final answer
   x = 17,312.55