Finding the Fourth Proportional to 14,624.42, 21,920.96 and 10,451.78

Step by Step Solution

1. Step 1: Write the proportion equation
   14,624.42 : 21,920.96 = 10,451.78 : x
2. Step 2: Convert to fraction form
   14,624.42/21,920.96 = 10,451.78/x
3. Step 3: Cross multiply
   14,624.42x = 21,920.96 × 10,451.78
4. Step 4: Simplify right side
   14,624.42x = 229,113,051.31
5. Step 5: Solve for x
   x = 229,113,051.31/14,624.42
6. Step 6: Final answer
   x = 15,666.47