Finding the Fourth Proportional to 14,123.63, 19,490.55 and 8,155.85

Step by Step Solution

1. Step 1: Write the proportion equation
   14,123.63 : 19,490.55 = 8,155.85 : x
2. Step 2: Convert to fraction form
   14,123.63/19,490.55 = 8,155.85/x
3. Step 3: Cross multiply
   14,123.63x = 19,490.55 × 8,155.85
4. Step 4: Simplify right side
   14,123.63x = 158,962,002.22
5. Step 5: Solve for x
   x = 158,962,002.22/14,123.63
6. Step 6: Final answer
   x = 11,255.04