Finding the Fourth Proportional to 12,490.50, 18,736.11 and 3,725.22

Step by Step Solution

1. Step 1: Write the proportion equation
   12,490.50 : 18,736.11 = 3,725.22 : x
2. Step 2: Convert to fraction form
   12,490.50/18,736.11 = 3,725.22/x
3. Step 3: Cross multiply
   12,490.50x = 18,736.11 × 3,725.22
4. Step 4: Simplify right side
   12,490.50x = 69,796,131.69
5. Step 5: Solve for x
   x = 69,796,131.69/12,490.50
6. Step 6: Final answer
   x = 5,587.94