Finding the Fourth Proportional to 13,300.72, 19,958.85 and 7,382.59

Step by Step Solution

1. Step 1: Write the proportion equation
   13,300.72 : 19,958.85 = 7,382.59 : x
2. Step 2: Convert to fraction form
   13,300.72/19,958.85 = 7,382.59/x
3. Step 3: Cross multiply
   13,300.72x = 19,958.85 × 7,382.59
4. Step 4: Simplify right side
   13,300.72x = 147,347,956.52
5. Step 5: Solve for x
   x = 147,347,956.52/13,300.72
6. Step 6: Final answer
   x = 11,078.20