Finding the Fourth Proportional to 13,570.50, 18,725.76 and 7,906.44

Step by Step Solution

1. Step 1: Write the proportion equation
   13,570.50 : 18,725.76 = 7,906.44 : x
2. Step 2: Convert to fraction form
   13,570.50/18,725.76 = 7,906.44/x
3. Step 3: Cross multiply
   13,570.50x = 18,725.76 × 7,906.44
4. Step 4: Simplify right side
   13,570.50x = 148,054,097.89
5. Step 5: Solve for x
   x = 148,054,097.89/13,570.50
6. Step 6: Final answer
   x = 10,910.00