Finding the Fourth Proportional to 14,123.47, 21,267.81 and 10,451.61

Step by Step Solution

1. Step 1: Write the proportion equation
   14,123.47 : 21,267.81 = 10,451.61 : x
2. Step 2: Convert to fraction form
   14,123.47/21,267.81 = 10,451.61/x
3. Step 3: Cross multiply
   14,123.47x = 21,267.81 × 10,451.61
4. Step 4: Simplify right side
   14,123.47x = 222,282,855.67
5. Step 5: Solve for x
   x = 222,282,855.67/14,123.47
6. Step 6: Final answer
   x = 15,738.54