Finding the Fourth Proportional to 13,005.38, 19,514.56 and 5,611.70

Step by Step Solution

1. Step 1: Write the proportion equation
   13,005.38 : 19,514.56 = 5,611.70 : x
2. Step 2: Convert to fraction form
   13,005.38/19,514.56 = 5,611.70/x
3. Step 3: Cross multiply
   13,005.38x = 19,514.56 × 5,611.70
4. Step 4: Simplify right side
   13,005.38x = 109,509,856.35
5. Step 5: Solve for x
   x = 109,509,856.35/13,005.38
6. Step 6: Final answer
   x = 8,420.35