Finding the Fourth Proportional to 13,606.58, 20,417.43 and 7,366.50

Step by Step Solution

1. Step 1: Write the proportion equation
   13,606.58 : 20,417.43 = 7,366.50 : x
2. Step 2: Convert to fraction form
   13,606.58/20,417.43 = 7,366.50/x
3. Step 3: Cross multiply
   13,606.58x = 20,417.43 × 7,366.50
4. Step 4: Simplify right side
   13,606.58x = 150,404,998.10
5. Step 5: Solve for x
   x = 150,404,998.10/13,606.58
6. Step 6: Final answer
   x = 11,053.84