Finding the Fourth Proportional to 19,120.05, 26,385.98 and 10,622.72

Step by Step Solution

1. Step 1: Write the proportion equation
   19,120.05 : 26,385.98 = 10,622.72 : x
2. Step 2: Convert to fraction form
   19,120.05/26,385.98 = 10,622.72/x
3. Step 3: Cross multiply
   19,120.05x = 26,385.98 × 10,622.72
4. Step 4: Simplify right side
   19,120.05x = 280,290,877.47
5. Step 5: Solve for x
   x = 280,290,877.47/19,120.05
6. Step 6: Final answer
   x = 14,659.53