Finding the Fourth Proportional to 22,532.50, 31,095.12 and 13,106.80

Step by Step Solution

1. Step 1: Write the proportion equation
   22,532.50 : 31,095.12 = 13,106.80 : x
2. Step 2: Convert to fraction form
   22,532.50/31,095.12 = 13,106.80/x
3. Step 3: Cross multiply
   22,532.50x = 31,095.12 × 13,106.80
4. Step 4: Simplify right side
   22,532.50x = 407,557,518.82
5. Step 5: Solve for x
   x = 407,557,518.82/22,532.50
6. Step 6: Final answer
   x = 18,087.54