Finding the Fourth Proportional to 14,562.86, 21,875.40 and 10,429.43

Step by Step Solution

1. Step 1: Write the proportion equation
   14,562.86 : 21,875.40 = 10,429.43 : x
2. Step 2: Convert to fraction form
   14,562.86/21,875.40 = 10,429.43/x
3. Step 3: Cross multiply
   14,562.86x = 21,875.40 × 10,429.43
4. Step 4: Simplify right side
   14,562.86x = 228,147,843.65
5. Step 5: Solve for x
   x = 228,147,843.65/14,562.86
6. Step 6: Final answer
   x = 15,666.42