Finding the Fourth Proportional to 13,601.70, 18,769.86 and 7,633.62

Step by Step Solution

1. Step 1: Write the proportion equation
   13,601.70 : 18,769.86 = 7,633.62 : x
2. Step 2: Convert to fraction form
   13,601.70/18,769.86 = 7,633.62/x
3. Step 3: Cross multiply
   13,601.70x = 18,769.86 × 7,633.62
4. Step 4: Simplify right side
   13,601.70x = 143,281,978.69
5. Step 5: Solve for x
   x = 143,281,978.69/13,601.70
6. Step 6: Final answer
   x = 10,534.12